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done all that guys. nothing works all usb sockets checked and ok .
the drive was working ok then its not.
turned off comp with the hard drive in. turned comp on with the hard dive out
turned off and plugged hard drive in different usb
turn comp back on - nothing, but it,s showing every where else
it does not pop up
as i said earlier i'm not a comp novice
i will just have to go in partition magic as it showing in there and format it again loosing what i have on the drive but at least it shows up after that,