Last night I was playing Turok2 on PJ64 and then later Perfect Dark on 1964 - both played fine and I was pretty happy...but...today I got home from work and now neither emu will work! The only ROM that works is Mario64. When I try to load any others all I get is either a black screen or the emu freezes. At first the FPS or VI is above 60 (for US ROMS), usually about 72 and then rapidly drops of to a low figure (say 15-20) and then continues to drop slowly until it reaches 1 or 2 all the while with the black screen. What is this?! Can someone help me please??