Nels Bruckner wrote:
The next thing I could try is swapping in a second set of ROM 3 ROM chips, which I don't have. My usualy saviors in this kind of situation, Reactive Micro, don't seem to carry ROM 3 replacements. Any suggestions?
On an 8-bit Apple I'd just write and run a quick Applesoft program to checksum the ROM (sum or EOR of all bytes), test it on an emulator and on the real system and see if the results differ.
I don't know the IIgs well enough to know whether the entire ROM is readable from Applesoft. You might need assembly, but I assume it would be short enough to just enter from the CALL -151 monitor.
-- Linards Ticmanis