Vigor

I currently own this http://www.antec.com/us/productDetails.php?ProdID=75004
which is small.

It works, BUT since it does not fit, every time I use the keyboard I noticed my screen shakes back and forth, making the screen somewhat loose at certain angles after a long period of time.

Anyone knows a cooling mat that can support such a large laptop. I own a Dell XPS M1710 17".

Your help is much appreciated.

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DELL XPS M1710 Laptop
Processor: Intel® Core™ 2 Duo T7400 (2.16GHz, 4MB L2 Cache, 667 MHz FSB)
Operating System: Genuine Windows® Vista Ultimate 2007 32-bit
LCD Panel: 17 inch UltraSharp™ Wide Screen UXGA Display with TrueLife™
Memory: 2GB DDR2 SDRAM at 667MHZ, 2 DIMM
Hard Drive: 100GB 7200rpm SATA Hard Drive
Video Card: 512MB NVIDIA® GeForce™ Go 7900 GTX
Sound Options: Integrated Sound Blaster® Audigy™ HD Software Edition
Wireless Card Dell Draft N Wireless