I bought an OCZ Vertex 30gb last week and after some fooling around decided to get the Agility 60gb instead. The 30 was just too small for what I needed. BUT the Agility 1AGT60G has been nothing but a headache. It took 4 attempts to get the OS to install at all (it kept saying "install failed") and now that Snow Leopard is running, the computer locks up after a few minutes. I had seen a few positive reviews for this drive...am I doing something wrong or is it defective?