Hi again KenB,
I took out my laptop hard drive and connected it via usb to another pc. I had to "install new hardware" through the control panel before the extra drive showed in "My computer". I couldn't open it or check it's properties without causing "My computer" to stop responding, but eventually got "chkdsk F: /r" to run. It was slow to start, showing only a black page with a flashing cursor at the top. I couldn't enter any commands, but soon the page told me that it was checking the drive. It took perhaps an hour to run through it's checks, but after I could open it through "My computer". I couldn't access "My Documents" but assumed that was because I wasn't signed on as administrator.
The drive is now refitted to the laptop(which I'm sending this message from) and appears to be working perfectly.
Many thanks for your advice, without it I would have been forced to the costly local repair shop, as I'd tried all I knew and didn't have the confidence to do what you recommended without guidance..
You really have made my day, a donation will follow on my next payday !
Thank You KenB
Wishing you a very Merry Christmas and a Happy New Year !!!!
Dan