Popping and crackling

Working on Cubase 5 essentials, Windows XP on the PC, with Yamaha Audiogram 3. Im hearing popping in the background. At first I thought it was because I was using too many tracks and the system was getting too much work, Then I started a fresh new project and started hearing popping after just laying down one track. Is there anyone out there who may have tips to eliminate popping. Thanks my USB Audio Codec is operating at 512 to eliminate skipping in my latency is there anything I need to do.

Noi need to post the same thread again each day…
http://www.steinberg.net/forum/viewtopic.php?f=20&t=32989

Dont worry about how many times I post something. If you cant help move along.

Yes I do worry and I move on or not, whenever I want to…