I'm having issuses with my copy of Abadox. When using the most likely settings, the game freezes (or crashes with graphical glitches) and have occasionally reset itself.

The game is a genuine USA version and I have cleaned it (will be cleaning more later to see if that has anything to do with it). If I run the AVS with NTSC mode, the game will crash in less than 30 seconds. Usually this happens during the first or second wave of monsters. This happens no matter if I have extra sprites on or off, or whatever the setting on scanlines or palette is.

If I put my AVS on PAL mode, the game works like a charm. In PAL mode it can run even with extra sprites on. I can also run the game in my PAL NES (cut lockout chip + Blinking Light Win mod) and it runs fine.

This happens on both 1.10 and 1.20b6 firmware on my AVS. If I upgrade to b8, then the PAL mode will crash too.