Problem with Replay Media Catcher: RMC disables Firefox and I.E. web-browsers

When I run Replay Media Catcher, it appears to disable my web browser. I've tried starting the browser first, starting RMC first, recording before and after starting the web browser, and have tried both Internet Explorer and Firefox with the same result.

On some occasions RMC will work, but usually clicking on the record button results in the web browser becoming unable to load any data at all. I'm using windows XP Professional and a fully registered version of Replay Media Catcher.

Can anyone help? thanks..... wildaussieboy