iTunes 4.5 doesn't recognize iPod

[Jay Friedland]

Reposting under old e-mail address-

This may be covering old ground, but I searched where I could. My iPod 
mounts on the desktop, but not seen in iTunes. I believe it has been 
that way since the 4.5 upgrade. I've tried what discussion groups 
recommended, remove cache, etc. by zapping pram, with ipod unplugged 
then plugged in. There's been no change. My only option is to 
"Restore", and would like to avoid if possible.
Jay