I just had my first project where I have run in to some old troubles in past versions of Vegas, but now 9c 64-bit. I imported a handfuls of JPEG's into the time line (10MP images) and I see the dreaded solid red frames. However, instead of crashing Vegas which I play it back over the time line or render it, I get a black segment where the image is. Odd this is, about 1/2 of the images were fine. I resized them all down to about 4 Megapixel size but that didn't change those specific images "red frame" problem. I tried tweaking the Dynamic RAM settings (lowering and raising to no effect).
Now the really odd thing. If I open the project in 9c 32 bit, it is totally fine on the time line and renders fine.
Another puzzler... any ideas? I did reinstall 9c 64 bit again but that didn't change the issue.
Mike