There is a problem with BitMinter for me. It says "No OpenCL-compatible GPU's detected."
Here are my specs.
Operating System: Windows 7 Home Premium 32-bit (6.1, Build 7601) Service Pack 1
Processor: AMD Phenom(tm) 8400 Triple-Core Processor (3 CPUs), ~2.1GHz
DirectX Version: DirectX 11
Card name: NVIDIA GeForce 6150SE nForce 430 (Microsoft Corporation - WDDM)