Text taken from an other forum I inhabit... apologies for the choice language.

Hi,

If you have been having problem with vent, read on, else you can fackoff.

There are some suggestions for fixing conversation buffering (up to several minutes of conversation are buffered and played back several minutes later or when you disconnect/recconect or leave/rejoin channel). If you google, there is a thread in the vent forums, where a large majority (if not all) Win7 users have this issue and it seems mostly with Realtek onboard sound cards. There are a few other things you can try, but below seems to be the most successful for most people.

1) in setup, set both input/output to DirectSound
2) in setup, click on the SFX button and then click on Directional radio button and assign Left (5.1) and Right (5.1) speaker output

Here's a picture for tards -