You might try uninstalling it with Revo Uninstaller, Peter. Perhaps uninstall it through Revo and re-install the same or an earlier version. I like it so well that I purchased the Pro but the free version is pretty amazing. Your computer spec is about what mine is and I'm not sure what kind of system utilities you might use but getting connected to the right ones makes all the difference in the world.

Yes, I have tried and indeed done an uninstall to both pieces of software.

Interestingly there was never a problem until an HTML Editor release two or three builds ago.

Hopefully at some stage it will resolve

Thanks

Regards
Peter