importer empty file error

I’m running WP 2.0.1 on apache 1.3 with mysql 5.0 on Windows XP. My problem is that whenever I attempt to import something (I have tried RSS and LiveJournal thus far) then I simply receive the error: File is empty. Please upload something more substantial.

I’m assuming this is a windows configuration problem because I have successfully imported such files in linux and os x. There doesn’t seem to be much info posted regarding specific winXP problems thus I’m guessing not many people use it for wordpress. But if anyone out there does, I would appreciate if you could enlighten me if there is a known fix for this issue.