Unless the game is using some 64 color EHB mode (that wasn't present in the original A1000 OCS chipset) there's no way that would make a difference. Myself and many others also had the same problem, and I most definitely have the ECS chipset. It's a dependency issue, or a missing library issue, or the game is looking for PowerPacker library version 2.0 and you have 2.1 installed, or some dumb thing like that. (just made up those numbers, btw, but you get the idea).
Run the sucker with SnoopDOS and see what it reports. I'd do it but I'm back to working 15 hours a day again, no time for Amiga fun.
