|If all else fails try this:|
Power off, disconnect from power and remove battery too if it is a laptop. Hold the power off button down for about 20 seconds to discharge the mother board capacitors. Re-assemble and see if it help - it has been known to help at odd times.
Just for info, what is the missing bit in your subject line, after:
installing reboot val
Always pop back and let us know the outcome - thanks
message edited by Derek