Hi, I've got a XPS M1530, Vista SP1, and I have recently experienced some problems. This morning, the screen would remain black while the laptop made the usual start up sounds and then did nothing. The power button remained lit. After some googling, I had found a solution: heating the gpu. (I found the info in a thread on this forum. So I opened up my laptop, but I was not able to remove the heat sink ( a screw that just wouldn't open) so I determined, through pictures, where the gpu was and heated the area of the heat sink under which the gpu lies with a hair dryer. I did this till the area above the gpu was too hot to touch. Afterwards, I started my laptop up and I didn't have the black screen, it just booted up as usual. However, before I got past the dell screen it crashed. I assumed it was overheating but after waiting some time, I booted up again and got past the dell screen and had a boot up screen asking me to do a diagnostic and recovery thingie because there might be a software or hardware failure. It proceeded to do this but after some time during the test, it crashed again. After booting it immediately back up, it crashed before I got past the Dell screen. After waiting a long time, I tried again and this time it got further through the diagnostic test but eventually crashed again. Now, when I try , the load bar on the dell screen goes extremely slowly and the laptop crashes before it gets past that stage (it crashes slowly if I didn't try to start it before, rapidly if I just experienced a crash). Sorry for the long post, but does anybody have an idea what I can do about this?