It seems, the latest components you have installed are cause of the problem.
What you can do:
1. You can just delete the package (*.pbl file) for the trial version of QuickReport. It is usually located at Delphi/Projects/Bpl folder
2. Also you can find and delete the corresponding key for this package in the registry:
HKEY_CURRENT_USER\Software
\Borland\D
elphi\7.0\
Known Packages
BTW Delphi 7 already comes with QuickReport, but it isn't installed automatically:
http://delphi.about.com/cs/adptips2002/a/bltip1102_4.htm