Rapidshare limits each user to a certain amount of downloading per day based on the users IP address. You can easily cheat rapidshare by showing a different IP address.

1. Clear your browser cookies.
2. Open the command prompt (Start - Run - cmd.exe)
3. Run the following simple commands:

ipconfig /flushdns
ipconfig /release
ipconfig /renew
4. Type "exit" to close the DOS window. Restart the rapidshare download job.