Hi,
I have just installed Matlab Student Version 2007a on my new Windows 7 PC (while on Windows Classic theme). However, when I start the program, it says: 

"Warning: MATLAB Toolbox Path Cache is out of date and is not being used.
Type 'help toolbox_path_cache' for more info"

I followed the instructions after typing "help toolbox_path_cache" and restarted Matlab. Now, every time I start Matlab again, I get this message:

"Error: File: pathdef.m Line: 17 Column: 3
Unexpected MATLAB operator.
Warning: MATLAB did not appear to successfully set the search path. To avoid this
warning the next time you start MATLAB, use
http://www.mathworks.com/access/helpdesk/help/techdoc/ref/pathdef.shtml
to help troubleshoot the "pathdef.m" file. To recover for this session
of MATLAB, type "restoredefaultpath;matlabrc".
Warning: Duplicate directory name: C:\Program Files (x86)\MATLAB\R2007a Student\toolbox\local.
Warning: Initializing Handle Graphics failed in matlabrc.
This indicates a potentially serious problem in your MATLAB setup,
which should be resolved as soon as possible.  Error detected was:
MATLAB:UndefinedFunction"

I type 'restoredefaultpaht;', then 'matlabrc'. It restores the path for that session, but when I exit and start over, the same problem happens. 

What can I do to eliminate this problem once and for all?

I'm running Windows 7 Home Premium on an ASUS Notebook G73JwSeries, with an Intel Core i7 CPU Q 740 (1.73GHz).

Thank you kindly in advance for any advice on this matter.
Best,
Flavia.

"Flavia Oliveira" <flavia@ene.unb.br> wrote in message 
news:ihl5tj$lo$1@fred.mathworks.com...
> Hi,
> I have just installed Matlab Student Version 2007a on my new Windows 7 PC 
> (while on Windows Classic theme). However, when I start the program, it 
> says:

MATLAB release R2007a is not officially supported on Windows 7:

http://www.mathworks.com/support/sysreq/release2007a/index.html

The first release officially supported on Windows 7 is release R2009a.

http://www.mathworks.com/support/sysreq/release2009a/index.html

> "Warning: MATLAB Toolbox Path Cache is out of date and is not being used.
> Type 'help toolbox_path_cache' for more info"
>
> I followed the instructions after typing "help toolbox_path_cache" and 
> restarted Matlab. Now, every time I start Matlab again, I get this 
> message:
>
> "Error: File: pathdef.m Line: 17 Column: 3
> Unexpected MATLAB operator.
> Warning: MATLAB did not appear to successfully set the search path. To 
> avoid this
> warning the next time you start MATLAB, use
> http://www.mathworks.com/access/helpdesk/help/techdoc/ref/pathdef.shtml
> to help troubleshoot the "pathdef.m" file. To recover for this session
> of MATLAB, type "restoredefaultpath;matlabrc".
> Warning: Duplicate directory name: C:\Program Files (x86)\MATLAB\R2007a 
> Student\toolbox\local.
> Warning: Initializing Handle Graphics failed in matlabrc.
> This indicates a potentially serious problem in your MATLAB setup,
> which should be resolved as soon as possible.  Error detected was:
> MATLAB:UndefinedFunction"
>
> I type 'restoredefaultpaht;', then 'matlabrc'. It restores the path for 
> that session, but when I exit and start over, the same problem happens.
> What can I do to eliminate this problem once and for all?

Open up the PATHTOOL using that command and/or the File -> Set Path menu 
item and save the path.

If that doesn't work, post to the group lines 15-20 of your pathdef.m as it 
exists immediately after you receive this error so that the group can see 
what's on line 17.  [If the line number where the error is reported changes, 
post a few lines before and after that line, indicate the line and character 
listed in the error, and indicate which of the lines you posted is the 
listed line.]

-- 
Steve Lord
slord@mathworks.com
To contact Technical Support use the Contact Us link on 
http://www.mathworks.com 

Hi Steven,
Thank you very much for your prompt response. I really appreciate it.
I finally figured out what was the problem (it took me a while to find which 'pathdef.m' file to look at, though. I know, newbie stuff :) ).
Line 17 of pathdef.m under ...\toolbox\local originally read:
c:\program files (x86)\matlab\r2007a student\toolbox\matlab\audiovideo;', ...

There was no "  '  " before "c:\...", so Matlab gave an error on Line 17, Column 3.
Since this was generated automatically by Matlab, I was initially unconfortable to edit it. But I saved the content and just added "  '  " at the beginning of each of the lines Matlab was reporting an error, and now it initialized without a glitch. I do run it in "Windows Classic" mode only, Matlab 2007a does not indeed run smoothly under Windows 7 otherwise.

I believe I will now only get an error when Matlab has to create this file again, since it will be missing a "  '  ", for some reason beyond me.

Thanks again very much for your time in answering this post.
Best regards,
Flavia Oliveira.

"Steven_Lord" <slord@mathworks.com> wrote in message <ihmouv$2md$1@fred.mathworks.com>...
> 
> 
> "Flavia Oliveira" <flavia@ene.unb.br> wrote in message 
> news:ihl5tj$lo$1@fred.mathworks.com...
> > Hi,
> > I have just installed Matlab Student Version 2007a on my new Windows 7 PC 
> > (while on Windows Classic theme). However, when I start the program, it 
> > says:
> 
> MATLAB release R2007a is not officially supported on Windows 7:
> 
> http://www.mathworks.com/support/sysreq/release2007a/index.html
> 
> The first release officially supported on Windows 7 is release R2009a.
> 
> http://www.mathworks.com/support/sysreq/release2009a/index.html
> 
> > "Warning: MATLAB Toolbox Path Cache is out of date and is not being used.
> > Type 'help toolbox_path_cache' for more info"
> >
> > I followed the instructions after typing "help toolbox_path_cache" and 
> > restarted Matlab. Now, every time I start Matlab again, I get this 
> > message:
> >
> > "Error: File: pathdef.m Line: 17 Column: 3
> > Unexpected MATLAB operator.
> > Warning: MATLAB did not appear to successfully set the search path. To 
> > avoid this
> > warning the next time you start MATLAB, use
> > http://www.mathworks.com/access/helpdesk/help/techdoc/ref/pathdef.shtml
> > to help troubleshoot the "pathdef.m" file. To recover for this session
> > of MATLAB, type "restoredefaultpath;matlabrc".
> > Warning: Duplicate directory name: C:\Program Files (x86)\MATLAB\R2007a 
> > Student\toolbox\local.
> > Warning: Initializing Handle Graphics failed in matlabrc.
> > This indicates a potentially serious problem in your MATLAB setup,
> > which should be resolved as soon as possible.  Error detected was:
> > MATLAB:UndefinedFunction"
> >
> > I type 'restoredefaultpaht;', then 'matlabrc'. It restores the path for 
> > that session, but when I exit and start over, the same problem happens.
> > What can I do to eliminate this problem once and for all?
> 
> Open up the PATHTOOL using that command and/or the File -> Set Path menu 
> item and save the path.
> 
> If that doesn't work, post to the group lines 15-20 of your pathdef.m as it 
> exists immediately after you receive this error so that the group can see 
> what's on line 17.  [If the line number where the error is reported changes, 
> post a few lines before and after that line, indicate the line and character 
> listed in the error, and indicate which of the lines you posted is the 
> listed line.]
> 
> -- 
> Steve Lord
> slord@mathworks.com
> To contact Technical Support use the Contact Us link on 
> http://www.mathworks.com 

I have the same problem with MATLAB student version 7.11.0 (2010b) and the lines of my file pathdef.m are :

p = [...
%%% BEGIN ENTRIES %%%
     matlabroot,'\toolbox;', ...
     matlabroot,';', ...
     'C:\Program Files\MATLAB;', ...

can you help me with whats wrong??? This problem doesnt let me use worldmap.m etc. I dont have administrative rights on my Program Files...

thanks
Becks