This seems like dead forum but I figured I'd give this a shot.

I've had a re-occuring problem myself with SH3. I just re-installed the game again and this is what it does. The game seems to install and load fine but when I go into the options or save menus they screw up. The options will continuously toggle back and forth i.e. on,off,on,off...on options, and the save menu will continuously scroll through all the save slots. If I get this to stop the game seems to play fine. How's that for Bizarre? Any advice or suggestions?