Random Shutdown of GW

When I am playing, there are random shutdowns of the whole GW task...
Doubt it is caused by me, because everything runs fine, and when I restart it, it runs fine, too(till it closes itself again)

When I use the "...gw.exe" -image
it says "repariert daten archiv"

since these shutdowns are random(from 2-20 minutes) I can't do anything serious, which is pretty annoying(dropped in gvg twice)

any1 else got this problem and/or knows how to fix this?

Please post your system specifications and the setting you are using within guildwars, for graphic and audio playback.

Just out of curiousity when did this start happening was it just after the big update for Nightfall and when it crashes does it reset your computer or just crash to desktop.

does it bring up the crash box? that send the stupid email to anet thingy?