Freezing on RAM loadup

When I Run Speccy v1.13 (newest) It tells me the first two categories, and when it starts to run RAM check, it loads for a few secconds and then freezes my computer. Im not sure why, my brother uses speccy on his computer and it works great, like the program. Im using Windows XP Home 32-bit. Brother uses Windows 7 64-bit, not sure if that is the problem...