The BC++ smoothing program will hang instantly on my T61 if it ever loses the focus. Even a popup help message thingy over it will cause it to hang. That seems to me to be an indication of a graphics driver problem.
I just did a full ThinkVantage System Update (close to 1 GB of stuff including a new BIOS). It didn't help with the smoothing program - it still hangs the same way. I tried running it on the battery with maximum power saving settings turned on - it still hangs the same way. I tried turning off the video acceleration settings in winders - the same hang. I tried running the desktop at 800x600 rather than 1680x1050 - the same thing (but it didn't stay in 800x600 on rebooting).
This T61 (6459CTO) has the nVidia Quadro NVS 140M and 4 GB of RAM is installed. It doesn't exactly match this situation, but it is worrying: http://www-307.ibm.c...ndocid=MIGR-69684 "Planar" is IBM-ese for "motherboard"...
As I said earlier, I'll find a work-around - installing Win2k in a virtual machine if necessary. I may eventually ship it off to be worked on if it does actually have the problem mentioned in the link, with the hope that they don't make it worse...
Cheers,
Scott.