A model number would still be better than knowing what color it is. I still have a feeling your laptop is not switching to the dedicated graphics card if it has one, I bet it is running on the integrated Intel HD 4000 and not your ATI. Can you paste the first part of your DxDiag like this? To run DxDiag click start and type in dxdiag and make sure you run the 64-bit version if you have a 64-bit PC, then just copy what I copied and paste it into the post. This problem could also be caused by a lack of available memory to the program from your graphics chip/card using most of your RAM at the time leaving little for programs. Integrated graphics chips are nowhere near as powerful as Intel would like you to believe, they are garbage when it comes to anything more than light gaming.
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System Information
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Time of this report: 10/4/2013, 07:10:56
Machine name: HAL
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.130801-1533)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: Z68X-UD3-B3
BIOS: Award Modular BIOS v6.00PG
Processor: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz (8 CPUs), ~3.7GHz
Memory: 12288MB RAM
Available OS Memory: 12272MB RAM
Page File: 3752MB used, 32516MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 64bit Unicode
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DxDiag Notes
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Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Input Tab: No problems found.
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Display Devices
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Card name: NVIDIA GeForce GTX 570
Manufacturer: NVIDIA
Chip type: GeForce GTX 570
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_1086&SUBSYS_35101458&REV_A1
Display Memory: 4049 MB
Dedicated Memory: 1233 MB
Shared Memory: 2815 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: PL2776HD
Monitor Id: IVM6605
Native Mode: 1920 x 1080(p) (60.000Hz)
Output Type: DVI
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 9.18.0013.2049 (English)
Driver Version: 9.18.13.2049