Nope, I tried to shrinkfiles and database some times before and I didn't get it reduced. And of course I checked that there were no transactions opened, and there weren't.

Maybe...

I had a tempdb mdf file which was 60 Gb, and I tried shrinkfile, and shrinkdatabase and got nothing. I noticed that I had several databases in 'readonly' mode. I...

Hello, I found the same problem on my SQL Server 2005 SSMS, and I have installed SP3, and it works.

Thanks all.