P: CS6 beta crashing on my system (Win, more than 4 scratch disks)

Photoshop CS6 beta is... the most unstable version of Photoshop I've used in the past ten years.

Drag and drop a file? Crash.
Export to PNG? Crash.
Use Liquify? Crash.
Use Iris Blur? Crash.
Do nothing at all? Crash for no reason at all.

And already on a big job with a VERY tight deadline, upon momentarily closing two PSDs I'd spent five hours a piece on, I tried to open the files again for comparison and they were both corrupt. I did nothing whatsoever- only saved and closed them- but Photoshop CS6 corrupted both to the point where I couldn't reopen them in any version of Photoshop. It's gotten to the point where I simply cannot use the program at all, and hope things are fixed in the actual release. Ten years I've been using Photoshop with not a single hitch, and now this beta is simply monumentally broken.

If you know ANY way to fix the stability- whether it's a reinstall or whatever- PLEASE let me know. I'm using CS5 in the meantime but I'd love to take advantage of all of the improvements in CS6.

Please help.