Hey Vinod
I have now followed all steps in the link and i am able to boot in safe mode as well as normal.
I could not find a device name video card driver in device manager (see screenshot my device list in sky drive) but there was a display driver named: AMD Radeon HD 6470m
I tried to update it but the pop up message said it was up to date. I then uninstalled it but when i restarted there was a different one in its place...a Standard VGA Graphics adapter.
The problem is that the screen resolution now looks stretched/distorted (see before and after desktop screenshot images in sky drive). I have tried all the different resolution settings available but none of them look good.
The pc has not crashed in the last hour since i removed the AMD Radeon HD 6470m but i suppose its not to say it wont.
Can you recommend another display driver i can install that will give me the same visual display as the Radeon or should i just re-install the Radeon?
https://skydrive.live.com/#cid=24E0BC6C1D07AED8&id=24E0BC6C1D07AED8%21127
many thanks
Adie