Java problem

[Dav2205]

This is a slightly strange one. I downloaded the latest Java runtime Environment from their website, but now whenever I try to run a Java enabled program my computer screen goes blank and I have to restart.

It happens when I try to run Speedtests for my broadband, and on any website that requires the program.

It's beginning to annoy me now so any help is appreciated. Cheers

 

[Dav2205]

Sorry for double post.

Right here's a screen.

link

Now, thing is when I did the print screen I was seeing a black screen with only the Limewire application up, but the print screen has appeared to have shown what I couldnt see.

By the way I don't really use Limewire it was just to illustrate a point.