What version of Pec are you using? It should be the Pec.dll that goes in your plugins folder. If it is an earlier external version, those don't work w/the latest version of ePSXe anymore. I, like dirk_gently, have no problems at w/Pec. If you want to get all the info on Pec straight from JNS (the author) head on over to www.emucheater.com There you should find every thing you need. Best of luck.