Audio is late/offset

I started gmod up to find that all of my audio seems to be offset by about a second. I’ve been screwing around with it for a while now. I’ve changed various settings, deleted/reinstalled gmod, etc etc but nothing seems to work.

[editline]26 December 2011[/editline]

This doesn’t happen in any other game I have, source or otherwise.

[editline]10 January 2012[/editline]

Video:

Still can’t find a fix

Bump, probably dumb but I still can’t find a fix… it’s not a big problem but after a while it really gets annoying