Hi I set up an 2 node active-pasive clustering using SQL server 2005 and windows 2003. I was using it well when I connect to this instance I used like "server1/inst1" to designate the instance. later I tried install another instance to this cluster on an active machine however installation was unsuccessful. After that I became only to connect using virtual server name only like "server1" Because of this change sql server service configuation manager doesn't start and I also can't see to property of this instance using management studio. Please help me out.