Need Help Please

my problem is I cannot get any PSX games I have downloaded to work on my Emulator, it keeps giving me a error going as followedePSXe: Opcode [3f-fffffffff] in PC [1f000000] UNKNOWN [000002c3:223:488]I would like to find some help on how to solve this error and resolve it fast
Post Merge: [time]1261464216[/time]
will somebody please help?

What version of ePSXe are you using?
What game are you trying to play?
Have you properly setup your ePSXe? Check out this tutorial
https://www.romulation.org/forum/index.php?topic=8528.0

I'm sure the problem is graphic plugins.