I've been playing around with Demul. Got it up and running on my main pc (Vista) and decided to try it out on my MAME computer so I could see if the gun games work with my act labs light guns (The couple I tried work fine

Player 1 only).
For some reason, it takes several minutes to launch a game on my MAME computer though (XP).
Seriously, like 3-5 minutes. Once the game starts, it works full speed. Demul launches quick. It just takes forever to start after a game is selected.
The MAME pc even has a faster processor. (2.9Ghz Vs 2.6, both Athlon II)
Any ideas?