[Phil Stone]

I have the same issue of vegas 9 working great on a fairly new i7 for weeks & now either locks up or crashes with a exception fault when attempting to render anything.

crashes with any codec often after some time into rendering.

rebuilt the system to try to figure out whats causing it, took it back to the plain old OS with nothing else installed other then the latest updates & still it crashes sometimes even to a blue screen doing a memory dump.

I guess the next step will be doing the install again with no updates & see for sure if its that or some kind of hardware issue.