Have you run through the key config in the spelunky config? Even rewriting it by reassigning may overwrite some random blank field.

How do I do that? I opened the .cfg file in Notepad, and it was just a bunch of numbers... I didn't know what's what...

Yeah, I tried all those things... and then double-tried them... Oh well. Looks like I'll hafta wait for the XBLA version...

I'm just using keyboard - don't have a joypad plugged in...

I'm gonna try another game made using Game Maker and see if it's something globally wrong...

But yeah, it's still doing it... My guy walks straight left and goes right in the SCORES door and then exits and then enters and then exits... etc.

I am having trouble playing this game:
Every time I try to play, it is as though UP and LEFT are permanently held down on my keyboard (although they aren't, and I was not touching anything at the time of opening the program).

This issue occurs every time I open the game... and oddly enough, I'm having the EXACT same issue whenever I used to try and play an "RPG Maker 2000" game as well.

It's possible this might not be an isolated issue, but it's only these two games that have had this problem. Any ideas what might be the cause/solution?