I had an LC575 collecting dust in a closet until I brought it back to life for my kids (aged 2 to 7) to use. It was working great (mostly running educational games, keyboard smashers, paint/draw apps, etc.) until recently when the mouse pointer started behaving erratically, as if the mouse mechanism was gummed up with lint - except it wasn't. Now the pointer is frozen, though the machine otherwise boots normally. I booted with extensions off - still frozen. Booted from my OS 8 CD - still frozen. At this point I'm thinking it might be a hardware problem, since booting from CD should eliminate a damaged system file or driver as the cause, no?
So I'm not sure where to go from here - any ideas? I'd try another ADB mouse if I had one. I checked the connector for damaged pins and it looks ok. The keyboard also seems to be working fine. Is there a s/w routine of some sort available that can test my hardware?