i have now reverted back to catalyst drivers 3.10 (the last in the 3.xx series, as far as i can tell) and that didnt solve the problem.. instead it introduced the exact same problem to 1964 instead..!! arghhhh
though i can still get OpenGL going in 1964. strange how OpenGL runs at about 3fps in PJ64..
i've now tried every possible solution and combination of solutions.. except for downgrading the OS, but im not sure i really wanna do that.. maybe i can run a Linux emulator, and rune Wine on that, that runs Win98, that in turn runs PJ64, that might just do it.