My G41 will not boot unless I apply pressure on the video card. when I release the video card the computer freezes. This is an IBM ThinkPad G41.

Hair dryer is not strong enough, use a heat gun and fix it for good.

When you say that you are applying pressure to your video card, am I correct in assuming you have your laptop open and pressing on the integrated video chip on your motherboard? If so, then your video chip has come partially out of it's socket on the motherboard. This is an increasingly common problem with laptops. The cause: your laptop gets hot from use, even though the CPU fan is working, and the heat builds up to the point where some of the solder gets soft or liquefies just enough for the pins of the GPU to come out of there sockets. There are several way to try to fix this problem, if in fact your chip has come partially out of the motherboard. If you do this yourself and you're not skilled in this area, there is a chance of completely ruining your motherboard. On the other hand, having a proclaimed professional do the repair may cost you just as much as purchasing another motherboard off of ebay. ANYWAY.....you have to completely disassemble your laptop to remove your motherboard, get a hair dryer and use it to heat up your GPU (Video Chip), Do this slowly or you'll over heat your board and it will be junk afterwards. Heat up the area of the GPU on both sides of your motherboard until it gets pretty hot. Then use something to press the GPU back into it's socket (Flat-head screwdriver or something of that nature). Be sure not to press so hard that you ruin your GPU or other motherboard components. While pressing on the GPU, cool off the area by switching your hair dryer to cool, if it has that ability. Or just slowly move your blower away from your motherboard, then just let the motherboard cool down to room temperature. Replace motherboard and reassemble laptop. There are times when this doesn't work, or that it only temporarily resolves the problem. If it does resolve the problem, then I would suggest using a laptop cooling fan to have running under your laptop while it's on. It will help to keep this from happening again.