While it doesn't fix your problem with XP, there are lots of applications
that will losslessly rotate your photos (I'm assuming you saved them in .jpg
format from the other posts. Exifer, Irfanview, ThumbsPlus all will do it,
and the first two are free. For lossless rotation, be sure to read the help
file, you can't just open and rotate, or it won't be lossless, except in
Exifer.
This might be easier than trying to find the fix. I battled with a
well-known networking lockup glitch with WinME for a long time; there was a
file that may fix it, but you had to go through the support system to get it
(even though it's existed on every single copy of ME I've installed, after
all updates). I finally just gave up and used the workaround which means
you don't ever use the places listed in your Network Places, you have to
burrow down from the top. I never could figure out why they didn't just
make the file available...even though I am eligible for support, I've never
used it and have no desire to sit on the phone and burrow through the system
and then explain that I've already tried all that and it doesn't work and I
need the file. (I even did a web search to see if some kindly soul had
gotten the updated file and decided to share it, but all I found was other
people with the same problem that wondered why they were being so stingy
with it)
Anyway, there are alternative ways to rotate...I'm surprised your scanner
software doesn't give you that option before saving.