If there is anyone out there with background and experience with home recording, I would sure like to hear from them concerning a matter that has been troubling me. For years I have been an avid but not very knowledgeable home recording enthusiast. I have enjoyed a particular software over the years and have "jumped up" with later releases as they became available. The software I have "played" with is called acid, made by sony. I have just purchased version 7.0. I also just purchased a new vista based computer from gateway. It was an incredible budget deal. Lots of muscle but I suspect short on the sound card. In the past, with my old xp machine, my soundblaster sound card handled previous versions of acid easily. Maybe I did wrong by changing two things at once. I switched Computer and software version at the same time. However, my current problem is that there is a line level input meter displayed on the recording software that constantly jumps from 0 to about 28db with consistent regularity, seeming to indicate some sort of a pulse of a signal into the soundcard. Almost like a clip in the input. I have disconnected the input and the pulsating meter persists. I am perplexed. The manufacturers of the software unfortunately do not support vista applications as of yet. Other than this irregularity, the software seems to run fine. Do you suppose I need to be using some sort of firewire interface instead of using the stock soundcard that came with the gateway? Could vista be causing the issue? I would appreciate any thoughts anybody may have on the matter. Thank you.