Sony Vegas

I bought Sony Vegas Movie Studio HD today since my laptop uses Windows 7, which doesn't have a "good" version of Movie Maker. For those who don't know, Windows Live Movie Maker is very limited, and I can't get Windows Movie Maker v2.6 to see my Microsoft LifeCam VX-6000 at all!

Anyway, Sony Vegas is supposed to be a good replacement, so I bought it. The problem is everytime I record something with it, the video and audio are out of sync. With closer examination, it appears it starts recording the audio before the video has a chance to start recording. With standard playback of the raw AVI files, it is fine. When Sony Vegas tries to mix/encode the file for playback, that's where it becomes out of sync.

My question is, what can I do to stop it from screwing up? Is there a way to make the audio recording sequence wait for the video (as it should?) I don't want to do something crazy like destructively edit the audio so that it is in sync. That's a silly solution since that should not be necessary to begin with. I'm looking for a solution that will make it work the way it was meant to work. Can anyone help me?

Laptop

I bought myself a laptop today. It took a big chunk of money I had, but it was worth it. I can now access the internet, and having this laptop will also make doing certain things for school a lot easier.

It's an HP Pavilion DV6-2173CL. It was a good deal for $700. It comes with a 15.6" screen, an Intel Core i3 processor at 2.13GHz, a 500GB 7200RPM hard drive, 4GB DDR3 RAM, a built-in wireless 'N' card, and Windows 7 64-bit. It connected to the internet without any issues. I'm still getting used to Windows 7 after having used Windows XP for so long.