Thank you Boggin, I have tried going into Safe Mode but that made no difference.
I do not know how to Install the Pro program again as I am unable to find how to get it to download, without paying for the Software again.
I have Uninstalled the Pro. Version and now I have installed the Free Tweaking.com, version and that works OK, but perhaps, not as good as the Pro Version.
I appreciate any advice that would help, Kind Regards Aussetaff (Alfred Jones)