19" hanns-g problem

[SameSuspect]

my widescreen 19" hanns-g is being a bit dodgy with me.

It keeps going dark for a second, then turning back on, then goes dark again and so on ranging from 2 to 5 times randomly. At first i thought it was my graphics card doing it but i have replaced it since. Now its started doing it again. Im using it with DVI and have tried the DVI settings in the ATI control panel.

havnt yet tried the monitor with vga as i dont have a cable for it

 

[SameSuspect]

when im browsin the net or playing a game or whatever, the screen freezes as if the pc has crashed for rougly half a second, then the monitor goes dark, when it comes back on the mouse will either work again or it will stay frozen before the monitor blanks again.

if i move the mouse while the monitor has blanked, when it "unblanks" the mouse will be at the position i moved it to, which gives me the idea it isnt the pc. Plus i have formatted since this prob started + upgraded the gc

im crap at explaining things like this!