The version i'm running is the one below:

Microsoft SQL Server 2005 - 9.00.5057.00 (X64) Mar 25 2011 13:33:31 Copyright (c) 1988-2005 Microsoft Corporation Standard Edition (64-bit) on Windows NT 6.1 (Build 7601: Service Pack 1)

I believe it could be something to do with the service broker since there are no procedures and/or queries that run or are the source of the problem, if its the service broker then its foreign territory to me and i'll have to dig into it more...

I used to play mvc2 :)...good catch with that one, very few people catch that