Login as administrator, then check that the administrator does have full rights on the target installation drive.
If that doesn't work copy the install directory to drive c and install from there, the DVD drive could be defective.

Check control panel, add & remove programs and uninstall any VFP9 references if they exist.

>>Is it a rights issue.
>
>ok so how do I chk that, or deal with a rights issue to get around it?