1. I have purchased Office Excel 2007 Upgrade version.

2. I have Excel 2002 (10.6854.6845) SP3.

3. When I insert new disc I get warning:-

"Setup is unable to proceed due to the following error(s):

The 2007 Microsoft Office system does not support upgrading from a
prerelease version of the 2007 Microsoft Office system. You must first
uninstall any prerelease versions of the 2007 Microsoft Office system
products and associated technologies.
Correct the issue(s) listed above and re-run setup."

4. The problem is I do not have any, "prerelease version of the 2007
Microsoft Office system" installed on my computer.

Any ideas how I get round this problem please?

Thanks for any help,

Steve