Yes, we're not telling you to get the best of the best. Anything will do. Hell, you can get a brand new GF2MX from Asus @ newegg for I think less than $30.
Check it out
You could have a GF2MX/400 64MB for $37 shipped, or the 32MB for $32 shipped. ****, they'll even give you a free t-shirt.
We tell you this because it sounds like you've got a few problems with your card. From the sound of it, you don't have another one sitting around to try either.