No, its not sitting on my lap because I have a feeling my warmpht could contribute to it. I'm thinking that it's only because of the warmph of the athmosphere arround my house (aka weather) and the fan is sensing the added heat. No, I can't get the "X pad" at the moment, but I will when I can get out. i thought it was me at first, so I removed from my lap and put it on my kitchen table. (Minus a table cloth... I figured that could help a little.) Anyway, there is still a very faint rumble of a fan... or 'whirring', whatever. Since I don't have an x pad yet, is that what is going on? Thanks.