Nightly 64 Bit crashes and never opens when I install it. 32 Bit works.

I have Win 7 64.

Any idea how to fix this.

I kind of had the same problem with the new IE. It happened cause I changed my default Directory in Windows. I do not believe this is the problem. It seems to be having a problem with a tamp file. My temp Files are also on another drive. Again 32 works 64 does not.

If you have had any similar problems please tell me how you fixed them.