I just got my C2D stuff today and was instilling the CPU and heatsink/fan. The CPU installed fine but the heatsink/fan gave me a bit of an issue. Nothing major but I ended up taking the heatsink off of the CPU after it had already been on it once. It had just touched it, spearing the grease a little. I then put it back on and clamped it down. My question is will it be ok or should I have wiped off the grease first? I didn't have any other thermal grease to use. Thanks.