Delphi 7 installation problem

I purchased Delphi 7 (Studio) Professional.  While it seemed to install OK,
when I try to run it I get the "Register Delphi" dialog telling me I have to
register it (as I expect), but when I click the "Register Now" button, the
right panel and the buttons on the "Borland Software Registration Wizard"
are blank, so I cannot proceed.

Any ideas as to the problem?  It's Windows 98SE with latest patch for my
video adapter.

Any help appreciated!

Ciaran Costelloe