Having Graphical Problems with Bad Company 2 and Oblivion

I just got a new computer about a month ago, but for the past week or so I've been seeing some graphical errors in a few of my games, and I have no idea where they come from or what they are caused by. I'm hoping someone can help me out. I will post my PC specs below and also my Steam Cloud Screenshots of some of the errors I managed to take a screenshot of. In the first screenshot of Bad Company 2, look closely at the rocks. In-game the rocks look to be flashing black and normal, but I obviously can't show this in a screenshot. A similar effect happens in the other shots except in the Oblivion one. In Bad Company 2, the errors aren't apparent on all servers.

Screenshots: http://steamcommunity.com/profiles/76561198013556757/screenshots/

PC Specs: Intel Core i7 2600K 3.4 GHz, 8Gb DDR3, Intel 510 Series 120Gb SSD, Nvidia GeForce GTX 560 Ti, Thermaltake TR2 600w Power Supply

Do you have the lates drivers, if yes try one earlier. Do you have an overclock on the card even if its factory? If its factory overclocked and does this they need to replace it(of course if its because of the OC). Also make sure you have latest directx but first and foremost try reinstalling the game.

I get a ton of graphical glitches in BC2 as well, but my system is also much older than yours. I've tried different drivers and everything, nothing has solved it.

Probably a driver issue, unless all your games are doing it.