karabiner Skizm

Since having started to play Secondlife on my newly built computer, I've noticed some problems; The main one is that my framerates are inconsistent. Even if I'm standing still and not moving the camera, my FPS can suddenly drop from around 40FPS to nearly 0, and I think it happens mostly when it's loading something from the GPU memory. This happens on every viewer I have tried, as does this problem; If I'm moving about a lot, SL crashes after around half an hour of playing. This is really getting to be irritating now. My system: XFX HD4890 2GB Kingston Hyper-x 1066 Core 2 duo 1.8GHZ clocked at 2.8 2x 80GB HDDs 650 watt CIT PSU Please help!