No, I haven't. Just opening the case. Everything is like 4-5 months old. I am even running the games at medium or low graphics so it runs smooth.
Also I just installed the latest nVidia Drivers for Windows 7, 64 bit.
Not sure if this can help at anything.
Code:
[Display]
Processor: Pentium(R) Dual-Core CPU E6500 @ 2.93GHz (2934 MHz)
Operating System: Windows 7 Ultimate, 64-bit
DirectX version: 11.0
GPU processor: GeForce GT 220
Driver version: 258.96
CUDA Cores: 48
Core clock: 625 MHz
Shader clock: 1360 MHz
Memory clock: 400 MHz (800 MHz data rate)
Memory interface: 128-bit
Total available graphics memory: 2815 MB
Dedicated video memory: 1024 MB DDR2
System video memory: 0 MB
Shared system memory: 1791 MB
Video BIOS version: 70.16.2E.00.07
IRQ: 16
Bus: PCI Express x16 Gen2
[Components]
nvCplUI.exe 3.3.532.01 NVIDIA Control Panel
nvWSS.dll 6.14.12.5896 NVIDIA Workstation Server
nvViTvS.dll 6.14.12.5896 NVIDIA Video Server
NVSTVIEW.EXE 7.17.12.5896 NVIDIA GeForce 3D Vision
NVSTTEST.EXE 7.17.12.5896 NVIDIA 3D Vision Test Application
NVSTRES.DLL 7.17.12.5896 NVIDIA 3D Vision Module (0)
NVMCTRAY.DLL 8.17.12.5896 NVIDIA Media Center Library
nvDispS.dll 6.14.12.5896 NVIDIA Display Server
NVCPL.DLL 8.17.12.5896 NVIDIA Compatible Windows7 Display driver, Version 258.96
PhysX 09.10.0513 NVIDIA PhysX
NVCUDA.DLL 8.17.12.5896 NVIDIA CUDA 3.1.1 driver
nvGameS.dll 6.14.12.5896 NVIDIA 3D Settings Server