activation stops working after a cluster failover

Hi All, 

I'm running into a problem with SSB on 

Microsoft SQL Server 2008 (SP1) - 10.0.2841.0 (X64) 
May 13 2011 12:08:08 
Copyright (c) 1988-2008 Microsoft Corporation
Enterprise Edition (64-bit) on Windows NT 6.0 <X64> (Build 6002: Service Pack 2)

after a cluster failover, activation doesn't work. Queues build up until I turn activation off and back on. Is this a bug or a feature?

---

Mordechai Danielov