a couple of them do, sometimes, rarely.
Im still here, just wont be playing due to major laptop problems...
Heatsink and fan, they're deteriorating, hence, more power goes into them, processor works slower when it gets hot so as to avoid overheating, but without the fan working properly, and heatsink not absorbing as much as it can, it's inevitable. Processor also doesn't have as much power because more is being put into the fan.
pretty much, new laptop needed. Im looking at a hp

SPECS!
Product Code : XC8830
Packaged Weight (kgs): 3.046
Camera Type: WebCam
Hard Drive Size: 1.280TB
Memory: 4096MB DDR3 1066MHz (2 Dimm)
Microphone: Yes
Operating System: Microsoft Windows 7 Home Premium (64 bit)
PC Graphics: ATI Mobility Radeon HD 5650 with 1GB Dedicated Video
PC Optical Drive Type: LightScribe Super Multi 8X DVD±RW with Double Layer Support
PC Processor: Intel Core i7
PC Processor Speed: 1.6GHz
Screen Definition: High Definition
Screen Resolution: 1600 x 900
Screen Size (Inch): 17.3
Tuner: DIB USB TV Tuner DVB-T
Widescreen: Yes
Wireless: 802.11b/g/n+BT WLAN