We have two SQL 2000 clusters in active passive mode. SQL 2000 with SP2 running on Win2k SP3 Ist Cluster 1.We applied ms04-011 to first sql cluster and after that we had problem in starting the cluster but with Microsoft engaged we got the problem resolved IId Cluster 1. We applied patch to Second cluster on the passive node and after that server kept rebooting. We applied patch to active node and that kept rebooting too. 2. We removed the patch from both nodes, cluster was workig fine. Is anyone observing the same problem or can shed some insight will be highly appeciated. Thanks in advance!!!