I get Error 1310

Error writing to file c:\config.msi\25093.rbf. Verify that you have access
to that directory.

Everytime I try to install Office 2007 Pro in Vista Ultimate I get this
error, but I have gotten a different filename the 2 times I tried to
install. Works fine on my other pc running windows xp. in vista i am full
admin with full rights. So what is going on here?