I just recently got my hands on a used Thinkpad laptop (T40) and it has some issues with booting up... it doesn't, or at least it doesn't every time. When the laptop does (or did) boot, it would fan goes on screen turns on splash screen shows up (with instructions on getting into the BIOS) fan goes off system boots up from hard drive, or CD if a LiveCD is in the drive Even when it was running, it would intermittently lock up but at other times it will run and run without issues. Unfortunately, now it only fan goes on screen never turns on splash screen does not show up if there is a CD in the drive it spins up.. then spins down if you pop the tray and then put it back in with a CD it will again spin up.. and then spin down the fan never turns off The air the fan is blowing out is not noticeably hot, just slightly warm and it doesn't matter if it is the first boot of the day or the 100th. I've tried this with the HDD in, the HDD out, the Optical Drive in, the Optical Drive out, plugged in, not plugged in, on the dock, off the dock (this is beginning to sound like the hokey pokey!) I'm trying to figure out where to go from here and am looking for suggestions. If it is the motherboard then I can look at replacing that but I don't want to be getting all the parts to replace unless I am pretty sure that may be the issue. Could this be cause by loose component (I've tried opening it up and making sure everything was tight) overheating (like I said, the air coming out isn't noticeably hot) broken motherboard (how can I tell, I don't see anything but I am not very experienced in looking) short circuit something with the video and screen gremlins[/list:u] btw, I know I am not going to be in the October General Meeting, but whether before or after hashing it out at the meeting, somebody could post the ideas here that would be great! Thanks for any suggestions/ideas.