You did re-install the patch, correct? Are the files in the saved games marked as read-only, if you backed them up to CD-R?
If you start a new game and save, then make a copy of your previous save game folder, you can start copying files from the working save to the copy of the non-working save, to help identify which files are the problem, if any.
One person was able to copy the rar file containing the automap_0_4096.lzb file to the hard drive, and then use Winrar to fix the archive and properly extract the file. Another person tried that but it didn't work. I think there were maybe a dozen posts with this problem awhile ago.
