Currently running TI9. Downloaded TI10. When I go to scan the exe (I always scan downloads as a safety measure), I get the following message: "Invalid size or check sum of file or unsupported compression format - native error: 00008. File processing error, possibly disk is full." I have two 80GB hard drives - one is empty and the other is about 80% empty. I've downloaded/installed other software today with no problem. Please help!. Thank you.