I'm getting the "Exception has been thrown by the target of an invocation" error message on QC 9.2 on Windows XP Professional. The error occurs after authentication when I try to log in to my project. I am a local administrator on the machine. The error is happening both in IE 7 and in QC Explorer. The QC User ID does not matter - several IDs have failed on that machine, but are able to work on other machines. I have tried erasing the Loader Class v4 file, running the QC uninstall utility, rebooting the workstation, and reinstalling the QC Components by visiting the QC URL. I have also tried the above procedure and installed the QC Components manually with the QCClient.msi file. I have tried deleting the Temporary Internet Files and clearing all cookies.

Has anyone else seen this and been able to resolve it?