Quote Originally Posted by century child View Post
Natalia, I get this crackling too (I'm also running SLI although 2x8800GTX's, not quad-SLI) and the crackling occurs when I multi-task. If I only listen to music without doing anything else or am gaming, I don't have the crackling issue.
+1 for crackling with X-FI-pci card. I get it in games(assiassin creed opening video) I always get it when Vista fires it's start-up sound.

I thought my sound card was fried was going to order a new one...going to have to look into this further now.