Whenever I try and change my resolution instead of the numbers and everything ingame getting bigger, my cs's borders instead shrink/enlarge. When I put the video resolution on 800x600 the cs takes up onyl a portion of my omintor and I can see my desktop. When I play on the max resolution setting it takes up the whole screen
1. I'm not in Windowed mode
2. I'm using the OpenGL setting
3. This just started happening once I picked up CS again.
4. I use a GeForce FX 5200

What do I do to fix this?