It looks like the problem is a conflict with my AV software. I'm running Network Solutions VirusScan Enterprise 8.0.0 and disabling the software doesn't seem to matter, nor does flagging the two library files "no scan" help. I'm guessing, from the posts I've found about McAfee conflicts with iTunes, that I may have to change my AV software -- this is an old version of VirusScan Enterprise anyway.
If you run the MSCONFIG, it looks like the first services to check for conflicts are your AV software and whatever software your ISP loads for internet access.
I've googled all over to see if there's a quick fix to the conflict, but I haven't found it. I have no idea how my AV software is messing with my library files Every Single Time I re-boot. I've checked every log I can find....