Hi,
after months of fights against sony vegas i discovered something that maybe can be useful for other users.
My pc configuration was that:
Dual core 3.000 AMD
Nvidia 8800GTS
4gb (corsair RAM)
and a ASUS motherboard with the Nforce chipset driver.
After months of testing I understood that the problem of these (apparently) random errors was the motherboard and his chipset.
I changed ASUS MB with a Gigabyte with a amd 790x chipset.
Now all seems to work perfectly also with tons of native hdv clips on the timeline : )
I would like to know if other users had similar experience with hardware incompatibility : )
Bye Marco!

Bonjourno, I have an Asus MB running Vegas with no problem. I do not use the onboard nVidia graphics, however.

I had a Asus MB and had plenty of issues with it. Gigabit rules...

So y'all are saying you belief it was the motherboard and not the chipset?

eg would any other 790x chipset work, or is there something particularly sanguine about Vegas and Gigabit?

I have an Abit IP35Pro and alot of problems with Vegas.....

Scott, I simply had bad experience with Asus, with one board. Installing drivers was very inconvenient and messy, and the board just didn't suit me because of compatability issues.

I have heard great things about Abit boards, so that just goes to show you it all just depends. I'm now a believer in purchasing ready made workstations. There are so many potential issues in this editing experience, I decided to try to eliminate at least a portion of those issues by purchasing a proven workstation performer, and I haven't looked back.

Good luck with your Abit!

Perhaps not the chipset so mach as the OEM's application of the chipset. I've found that Intel CPU's mated with Intel mobo's are the most solid combinations I can find for edit platforms.