>     Now, i've upgraded to 8MB and
> installed an apple 8 bit video card, and it still wont boot. It gets the
> the part where its supposed to clear the screen, but instead it just
> freezes.  I do have the PMMU installed, i'm running system 7.5.5, I have
> mode32 7.5 installed, 32-bit addressing is on, VM/ram doubler is off,
> and SCSI is terminated.  I've disconnected my hard drive and put it on
> an LC475, and it was able to at least clear the screen, so I know the
> kernel isn't corrupted.  Anyone able to help?

Is there an appletalk deskwriter attached?  this will do that, even with 
localtalk shielding on . . .

rick

for that matter, unplug everything attached to your serial ports.  And 
make sure you're set to 1 bit color.