Hi Guys
Sorry I have not posted for a couple of days but I have been away.
Thanks for your suggestions.
Well here is what I did.
I started from scratch. Removed the graphic card and the monitor drivers and used Microsoft's generic drivers. I like the way you are thinking Jerryheavyarms! Sadly this did not solve the problem. Slaved an identical Graphics card in as still the problem remains.
I checked Windows was fully updated, clean installed graphics drivers (nope) Clean installed Monitor drivers (nope).
Decided to use msconfig and by a process of elimination under the start up tab, I concluded the mouse drivers were causing the problem. I have a Roccat Cone Mouse so I removed the moused drivers and hey presto everything worked fine. I downloaded the latest mouse drivers from there website and guess what?....................................... .........
nope! The problem occurred again.
Bearing in mind I have rebooted the PC over 30 times by now, nightmare and boring. So I removed the mouse drivers and it works fine.
I have emailed Roccat Kone manufacturers and made them aware of the conflict with my system.
I will let you know what I find out.
Thanks for your input.
Technowarrior