Seems to me:
1) Computer problem - see your local geek
Or
2) A problem with the install. Do you install from a CD/DVD? Can you operate other CD's or DVD's in that drive? Maybe call support for a new disk? Or, did you download it? If so, can you re-download the install?
1) Computer problem - see your local geek
Or
2) A problem with the install. Do you install from a CD/DVD? Can you operate other CD's or DVD's in that drive? Maybe call support for a new disk? Or, did you download it? If so, can you re-download the install?