I am having a very similar issue. I accidentally stopped my download and ever since I am unable to download files from rapidshare. Reboot, cleanup and IP reset did not help. I have tried everything listed in this thread except for Vista cleanup through command prompt, but I wasn't even able to get my download to work once... I am going to try that cleanup through command prompt now and see if anything comes out of it. If it doesnt help, I suspect this may be an issue on Rapidshare side.