I downloaded the new MSDN library the other day on my new Vista install. The file completed (2gb) but can not be seen in Explorer. When you try to download again, it shows the file exists in the Save As dialog that the new download manager puts up. I suspect it was some weird problem that happened after the file was complete, but before the Transaction completed (i.e. during the check sum verify). However, if the transaction failed, why does the file still exists? Should it not have been rolled back? Now I can’t delete it. What to do?