Gerard
You have caused confusion by posting your problem in a thread started by someone else. When you are seeking help you should start a new thread by checking the box before "Post to the Community" at the top of the page. More details on what to if you expand Asking a Question or Starting a Discussion here:
http://answers.microsoft.com/en-us/page/faq
Next time you need to seek help please follow the proper procedure.
What is your computer make and model? If not a branded computer what is your motherboard make and model?
Please provide a copy of your System Information file. Type System Information in the Search Box above the start Button and press the ENTER key. Select File, Export and give the file a name noting where it is located. The system creates a new System Information file each time system information is accessed. You need to allow a minute or two for the file to be fully populated before exporting a copy. Please upload to your Sky Drive, share with everyone and post a link here. Please say if the report has been obtained in safe mode.
For help with Sky Drive see paragraph 9.3: