i use windows 98,a 600 mhz amd athalon,128 megs ram,30 gig maxtor 5600 rpm hardrive,philips seismic edge sound card,and sonic foundry vegas pro.when i record one track it is fine.when i do another on top of that one by doing sim.play/record the new track lags behind so it seems like i cant keep in time with the music.when i first started using it i was using my old soundcard which was built into my motherboard but after 30 seconds of sim. record/play the audio would drop out.so i replaced the soundcard with the one i have now.and it does fine until i do 2 or more tracks sim.play/ rec.also i downloaded the new version 2.0 to see if it would help and it still does it.im gonna buy the new vegas 2.0 but need to fix the lagging problem.also i noticed that two other programs ive downloaded one is guitar trax by cakewalk,and n-studio,on both of these when i hit record i get and illegal operation message and it closes the program.any suggestions anyone.thanx