Thanks,

Jon's reinstalled all his components from scratch and the error's gone away.

Giles.

Hello, One of my colleagues is getting the following error message when he's opening Delphi: Registration procedure, Teechartpro.register in package C:\program files\teechart pro v503 for Delphi 7\Delphi7\bin\dcltep57.bpl raised exception class Exception: Invalid action registration. The installatio...