I am working on a ThinkPad R51 with windows XP Pro. We are on a local domain, and every now and then when the pc boots it will hang up just before the network authenication window pops up. It will do this after a cold or warm boot. I have looked every where I can think to find a solution. Most of what I have found is telling me that it has something to do with the video drivers and/or the BIOS. I have updated the video driver (it was recommended to get the latest) but I have not updated the BIOS. It is my laptop from work so im hesitant to really messy with it. Any help would be great, Thanks.