Artifact glitches - help please!

hi. since i got an FX5700 card i'm getting annoying artifacts in my pictures - odd coloured pixels have been appearing when i scroll about, or show/hide palettes. latest one was dafter : zoomed to like
75%, nothing,
100% could see a random pixel,
110% nothing.

then i was looking at my pic, pressed tab to hide the palettes adn a green pixel appeared. tab again, it vanished.

it's doing my head in! >:-/

been using PS7, upgraded to CS2, since removed it cos i did an XP reinstall and anyway i'd put it in the same folder as PS7 which you ain't supposed to do apparently.

not sure if this is a card or a PShop problem. been playing Delta Force Black Hawk Down too - all the graphic stuff is there, but clicking a menu option hangs the game for about ten seconds. sometimes when a mission starts, same thing, a hang then it runs fine. other things seem fine tho.
PS7 was working fine before, making me thing it's the card, but i'd expect more apps to crash/corrupt...??
i'm running v71 nvidiaa drivers - i tried the v78 pack, they failed to unzip, i tried the v77 and DFBHD menus were corrupted.
current set up :-
XP home
1.5gig
Athlon 2300+
ASUS A7n8x-x mobo
ASUS geforce FX5700 vid card
PShop on a different partition to XP, main scratch is another separate 10 partition.

any thoughts/ideas would be greatly appreciated.

cheers
KW
//\oo/\\

don't know specifics but it definitely sounds like a hardware prob. maybe one of our windows gurus can offer more assistance.

chris

Photoshop gets sloppy when you zoom out/in, it just doesn't take enough time to create a properly aliased image for every zoom level. From my experience what you see at 100% is generally what you'll get.