Could it be this?

https://docs.microsoft.com/en-us/archive/blogs/queryoptteam/fun-for-the-day-automated-auto-indexing

It's actually pretty small, <500MB, there has to be something going on with the application.

We tried to restart SQL but it wasn't responding so we had to reboot the server. Everything recovered fine and I was able to truncate the log of that...

Thank you very much, I'll check that out!

Yes, they did a memory check and that came up clean.

Absolutely, that was my first thought. But my sysadmins assure me that the firmware is all up to date and the disks are fine. I've seen the latch...

Ah, thank you Noel! Method 1 was the only one I hadn't tried and it worked.

Much obliged!

~Pam

I stopped SQL, deleted the files, restarted SQL. The new tempdb was created at 15GB (completely empty) and it still won't shrink via EM or QA.

Yes, sorry if that wasn't clear. I've tried to shrink it several times using Enterprise Manager and Query Analyzer. It always says the shrink was successful but it...

Yeah, I thought the same thing, but given the fact that they didn't mention anything about interfaces in the question or the answers provided I just assumed they didn't change.

I'm sorry, I still need clarification.  How should the question be worded so that the dependencies answer is the one and only correct one?  As stated previously, even the Startup...

HA! Yeah well, I find SQL gurus are few and far between and they seem to be too busy to sell t-shirts so I take what I can get.  Perhaps...

Ahh, well, check out my personal fav:

http://www.thinkgeek.com/tshirts/frustrations/595d/

I rest my case...  How many t-shirts from ThinkGeek do you own?

Way too much time on your hands... (funny though)