I'm attempting to run Blackthorne PC on my 1.3ghz celeron laptop running windows xp. I expected that running an older title such as this would present me with the problem of too much speed, and possibly soundcard difficulties, but even running the game with no sound, it is impossibly SLOW! Any ideas on why this could be? I've tried different compatibility mode settings, and allocating different amounts of memory to it, but nothing seems to make any difference. Any suggestions would be greatly appreciated!

You answered it yourself already.

Any suggestions? (other than formatting and installing dos 6.2 )