Any iTunes experts here?

[Black Diamond Vol]

I'm having a weird problem.  When I got a new external hard drive a couple weeks ago, I made it the default location for my iTunes library by going to edit>preferences>advanced>iTunes media folder location and changing it.  This freed up about 90G of space on my computer.  I haven't had any problems with it up until today, when I tried to add some new files, and it didn't copy them over, instead writing them straight to the C drive.  So I went back into preferences and did it all over again (and this is a lengthy ordeal when it has to process 13,000 files).  Problem fixed- for about 5 minutes.  When I checked back, it had AGAIN changed the default location back to the C drive.  I'm currently changing it back, but it's probably going to revert back again.  What the hell is going on, and how do I fix it?

[Quasi EVol]

Your external HD must be plugged in, powered-up & mounted on the computer before iTunes starts. Make sure iTunes isn't starting up w/ your system.

[Black Diamond Vol]

Your external HD must be plugged in, powered-up & mounted on the computer before iTunes starts. Make sure iTunes isn't starting up w/ your system.

Well, that's something I left out.  My HD is mounted to the pogoplug gizmo, and networked to my computer.  I checked and made sure that wasn't the issue, because when I go to My Computer, it sees it as a writable drive.  Anyway, I changed it back again about a half hour ago, and it appears to be sticking this time.  I hope it stays that way.

[Stogie Vol]

Jobs is haunting you.