For some reason, all of the sudden my tempdb has started growing to the limits of my harddrive space on the server and I can't figure out why. Yesterday, I was testing an sp that ended up running for about 15 minutes and I noticed the tempdb hit 21GB, so I restarted the server to reset it. Since then I haven't run anything on it other than the normal operations and when I came in this morning, it was at 21GB again. The only db that's running is about 75MB and may have had two people on it. I didn't have any scheduled events or anything that I can think of. Any idea what's causing this? I can expand the storage area for it with no problem, but it doesn't seem right for it to be this large. It's never been in the GB range before.