Hello all,
OK, I've been using Vuescan perfectly on Kubuntu with my Nikon Coolscan 4000 
for a while.

After following many pages of indication, I got iscan to work on my new 
Epson Perfection V500, which is apparently a prerequisite.

But when I start Vuescan with the Epson, I receive:
"VueScan found an Epson Perfection V500, but no Epson software for this 
scanner was found on your system. Try downloading a driver for this scanner 
from www.avasys.jp/english. See the VueScan Release Notes for more 
information."
iscan is working, so that should be it, no ?!?

Additionaly I see the following messages on the command line:
Gtk-Message: Failed to load module "canberra-gtk-module": 
/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so: wrong ELF class: 
ELFCLASS64
(vuescan:11718): Gtk-WARNING **: 
/usr/lib/gtk-2.0/2.10.0/engines/libqtcurve.so: wrong ELF class: ELFCLASS64
(vuescan:11718): Pango-WARNING **: libthai.so.0: cannot open shared object 
file: No such file or directory
(vuescan:11718): Pango-WARNING **: Failed to load Pango module 
'/usr/lib32/pango/1.6.0/modules/pango-thai-lang.so' for id 
'ThaiScriptEngineLang'

Some more info:

$ scanimage -L
device `epkowa:interpreter:001:004' is a Epson Perfection V500 flatbed 
scanner

$ cat /etc/sane.d/epkowa.conf                                    
usb

$ cat /var/lib/iscan/interpreter
interpreter usb 0x04b8 0x0130 /usr/lib/iscan/libesint7C 
/usr/share/iscan/esfw7C.bin

$ ll /usr/lib/iscan/libesint7C /usr/share/iscan/esfw7C.bin
ls: cannot access /usr/lib/iscan/libesint7C: No such file or directory
-rw-r--r-- 1 root root 65793 2009-05-19 09:21 /usr/share/iscan/esfw7C.bin

$ cat /etc/sane.d/dll.conf
coolscan
coolscan2
epkowa

$ sudo aptitude search iscan
i   iscan
i   iscan-plugin-gt-x770

I'm  basically the same as this: 
http://ubuntuforums.org/archive/index.php/t-1086413.html
Anything else ?!? Thanks.
-- 
Guillaume Dargaud
http://www.gdargaud.net/

Never mind, using the 32-bit deb files worked after a restart.
-- 
Guillaume Dargaud
http://www.gdargaud.net/