sorry need to edit that last post.
Go to you tube and type in "IBM T41p re-flow GPU repair".
I have carried out this proceedure sucessfully myself but I used a laser thermometer and followed the instructions as laid out in the following post which I recommend:
http://forum.thinkpads.com/viewtopic.php?t=57021
Good luck and dont do it if its still in warranty!! :-)
dave
February 2008