For under $30 USD on eBay, you can buy a low-profile PCIe graphics card that is natively supported on Windows 7 64-bit with modern drivers. Examples:
The GMA 3100 is an integrated graphics solution launched in 2007, primarily found in Intel G31, G33, Q33, and Q35 Specification DirectX Support Hardware support for DirectX 9.0c and Shader Model 3.0. OpenGL Support OpenGL 2.0 Clock Speed Operates at a base frequency of System Shared Memory (up to 256MB or 384MB depending on BIOS/system RAM). Performance
Understanding the hardware limits helps set realistic performance expectations: : May 9, 2007. Architecture : Based on the 90nm Bearlake-G+ (G33) variant.
The most reliable version for the 64-bit architecture is (internal version 8.15.10.1930).