Strange WindRiver Error

[Maxpower57]

when I go to build a project (clean, unmodified SimpleRobot Project)
it gives me this error:

Assembler messages:
Error: C:\Windows\TEMP/cc4mbaaa.s: No such file

I've done a search of all the files contents in C:\WindRiver\ for "cc4mbaaa" and nothing came up.
I've searched through all of my preferences but can't find a "cc4mbaaa", which appears to be just garbage text.

Any Ideas?

[Maxpower57]

Fixed the problem:
Windows vista blocked access for the compiler to write there. if anyone else runs into this: just run the program as an administrator.