sometimes it may not even wiggle. during transport temp changes and shifting can cause the card to loosen. most of the time you wont be able to tell due to the lock arm, so that is why you must remove the card, make sure everything is clean and dust free, and reseat it FIRMLY... of course if you have on board and AGP added card, you may be in the wrong slot, as stated above.
If you argue with an idiot he will drag you down to his level and beat you with experience.
I am not a fast writer.
I am not a slow writer.
I am a half-fast writer.