Photoshop 7/Scanner communication problem

I thought I asked this question last night, but it doesn't appear, so if this duplicates, sorry...
Have new silver tower G4, OS 9.2.2 Photoshop 6 & 7, Epson 1200U scanner.
On Import, Epson Train, halfway through scan get message "problem communicating with scanner, function not implemented" after OK, "could not complete import command because of a problem with the scanner." All cables are tight & connected.

I thought it might need an updated driver - downloaded most recent one for this OS from Epson site, installed, same problem. (This scanner worked properly on other G3 with Photoshop 6&7)

Went to other computer & compared extensions & prefs in Photoshop plugins & also system extensions & prefs. Looked like one was missing from OS system prefs, Twain folder. Copied that one pref, & placed it in the Twain folder in OS prefs. Restarted. Then had crash, & after multiple triese to restart, just get a gray screen without even a sad mac face. Can't restart from stripped down start-up disk, can't even open the CD door (there's no open button on tower) - opens from keyboard I guess, but nothing is functioning now.
Any suggestions?

never heard that one before - I thought Macs are the stablest solution on the market - when you tried to scan the first time - when you got that error message did you do it from the scanner's software or from photoshop? the twain driver usually works with any kind of scanner...
split your tower's shell and manually remove the disk - then try to boot it from another comp...that is if you had a network able system before the crash...
if not - well - the G4 (you said) is brand new - that sounds like a case for tech support if I ever heard one...