Hi, I just recently bought a 64mb Abit Siluro MX400 (with TV Out) graphics card and though it seems to work fine with the native XP drivers when I updated to the either the cards recommended XP drivers or Nvidias detonator drivers I run into the BSOD problem. Basically, I will be quite happilly using the computer then it suddenly crashes (normally when opening a new window) I then get the blue screen with the error message IRQL_NOT LESS_ OR EQUAL. After It dumps some memory it restarts then runs a scan of the disk before loading windows again. Ive looked around on the net and it seems that this is a common problem with MX400 cards, Nvidia drivers and Windows XP. The general opinion is that its an issue with IRQ addresses but Ive seen other reason stated as well. Ive checked my system and the cards IRQ address is 11 and is shared only with my FA11 ethernet adapter. I am asking if anyone else here has had the same problem and if they have found a solution (hopefully not too technical) for it. For now I can just stick to the native XP drivers but they are limited as many of the features of the card are lost with them. Thanks in advance for any help you can give.