hope this is the right place to post this
yesterday i was coming out off a game when the screen flashed black then back to desktop a few times then i got a pop-up saying something about my graphic card having a problem, but all seemed fine went into another game for about 10 mins but i got the same on exit.
but this time i could only move the mouse pointer nothing else so i hard restart it, i got the post screen the windows loading bar but before the welcome the screen went black and stayed like this.
tried to run it again but got the try to fix windows startup so i did the only problem i could see in the details was
acls on C:\windows\system32\KgyGaAvl.sys are not proper .old value=0 x 12019f
then it started to load and got into windows but it flashed from desktop with file for icons to a black screen. when i managed to get into control panel the thin border was all different colours.
tried rolling back the graphic driver but would not let me, i noticed earlier in the day when my brother was taking something over that i could not open anything or use the mouse buttons until i hit ctrl alt del and then opened the task manager, then all worked well.
can seem to get into safe mode alright but have not tried today.
i have had my old laptop graphic card die but that seemed to happen slowly over time.
is this a vista or graphic card problem
windows vista home premium
nvidia geforce go 7600 512mb
thankyou for your time