SP3 downloads but won't install. I have reinstalled SP3, and windows installer. and ran several regsvr32 .dll files but still no luck installing. I cleaned up temp files and defragged which didn't help either. I renamed software distribution folder to .old and redownloaded SP3 but still won't install. Any other tricks anyone knows about? I do not have any antivirus, or spyware enabled that would effect install...THanks