[roger_smith]

If your drive is having read errors, the physical hard drive itself is likely starting to fail. Find out what type of hard drive is in your system then go and get the drive test tool for that manufacture. For example, Seagate has a program free to use called Seatools that can run various tests on the drive. Additionally, most Linux distros have a drive utility you can run SMART analysis on and get SMART data. Boot up a LiveCD and run the checks on your hard drive.

It sounds to me like there is a good chance the physical drive itself is bad.