My classic XPS M1710, has been giving some trouble for a couple of days, would work fine then just shut down with a BSOD, to quick to read.
Then booting up became troublesome, weird lines on the DELL screen and then odd artifacts on the Windows logo, then crash (BSOD) and reboot.
Loaded up fine in SAFE MODE, and the BIOS diagnostics came back OK.
So, after a little online research, bit the bullet and decided the graphics card was poorly.
Pulled the laptop apart, and removed the GPU (NVIDIA Geforce GTX 7950) and associated hardware.
Removed all the heatsinks, foam pads, thermal paste, etc. and popped it into a pre-warmed oven at 180 degrees C.
Left it to bake for 20 minutes and then rest until cool.
Put all the bits back together and lo and behold it's now working. Seems that there's some weakness in the (lead-free) solder and after a time it breaks down and causes problems.....a bit of baking re-aligns everything and you're good to go, until the next time.