When ever I try to download Just Cause 2 on steam , when the download is done I get either Corrupt game files or Disk IO Failure (I think that's how it said it). When I get Disk IO Failure my download will stop at 99% and say Update paused. When I try to Resume the update it goes straight back to update paused! How do I fix this? I am thinking about buying another copy for 3.75 but I am not sure. HELP!
P.S: The Corrupt game file's has only happened once and that was when the download ACTUALLY finished.

Thank you!