averied

Hi..

I have a very strange behaviour in one of our company laptops .. It has
Windows Vista Business Installed..

Suddenly today, with no hardware or software changes the system can't boot..
everytime I try, it just goes off and reboots.. When I try to boot in safe
mode, it hangs when loading mup.sys..

If I insert the DVD, it won't start Windows Setup so I can go to the
recovery menu, it just reboots...

Now the strangest thing... The laptop has 2 RAM memory modules, so if I just
put one of them and remove the other one, everything starts working.. windows
boots, I can enter DVD setup. It doesn't matter what memory module I put.. it
doesnt matter what memory bank I use, all possible configurations work...

So I don't know what can be happening here.. I need to put both the memory
modules, as Windows Vista runs very slow with just one of them...

Any ideas??