I found this and it seems to be working:

http://www.simple-talk.com/community/blogs/rodney/default.aspx

Someone turned on service broker, and it has been logging error messages for over a year. I am running END...

I've tried them both.

I forgot to mention that I have done these steps also:

use msdb

go

exec sp_updatestats

go

dbcc updateusage('msdb') WITH COUNT_ROWS

go

I did not rebuild indexes.