I dunno about anybody else, but I found the RTG patch pretty flaky
Having routed through a disassembly of AB3D, and the actual sources of both AB3D and AB3D II, its amazing it works at all :-D There is some seriously bad coding practices in there (no offence to the AB3D dev team though; they did make a great game).
Incidentally, the WHDLoad installer for AB3D fixes a few bugs and lets you quit back to the OS. I'm going to send the source of my patch to the author of the WHDLoad installer this evening in the hope that he will integrate them.