Well, it ACTS like a memory leak but maybe not. Baldie, what video card are you running?
I have dual Geforce GTX 460 cards. When I play Black Ops, the system, at some point, will grind to a halt. Then, if I play any other COD game, they do the same thing. I have to reboot to fix it.
I played only one map of BO on Saturday and got a phone call so just closed the game and didn't touch it again. Later, I got into COD4 and my video was screwed - tearing, and wierd pieces of buildings stretched across the horizon, etc. When I closed COD4, I got a warning message from Windows7 that the GeForce driver had recovered from a problem. So, I checked the drivers and found they were slightly out of date, so I updated them. Then, I rebooted, and went into COD2, and had the same problem. When I closed COD2, I got a message that DirectX had recovered from an error. I ran the DX diagnostic (DX 11) and it found no problems. Shut the system down, came back up, and everything seems fine.
Thing is, I have had no problems on this system until I installed BO, and it seems that every time I run BO, my video gets screwed. It may be a problem only with the 400 series of GeForce cards - I don't know. But what I can tell you is that I will not run BO again on my system anytime soon. We'll see how/if it gets sorted out.