My drivers and firmware are always up to date.
I check for thouse each month.

You say LW itself does NOT restart your computer.

Then explaine why only when LW is running, it happons.

I can run other java baced programs and not have this problem, so that rules out the clash between java and graphic drivers.

I know it's not designed to do this, but there is defenetly something wrong with LW that is the direct cause of the computer restart.

My computer does not restart itself ever unless I have LW running.