After testing on 3 different computers, it is the disk 3 that is faulty. What can i do now? is there anywhere i can downloade it from, or something like that?

OK, here we go... New PC, 3 GHz. Pentium 4. Windows XP, 120Gb hard drive, 60Gb free. G-Force 4 MX 64Mb Graphics card erm, anything else? 512 Mb RAM I mount the C: and A: as instructed. First disk installs*. Second disk installs*. But when i get to the third disk, about hald way through, in the …