Hi Nancy, > We recently went live on a new third party system with an Oracle RAC > backend. We have 5 nodes on Oracle 10.2.0.3 on Windows 2009 64bit. We have > sporadic performance issues that we are trying to resolve and I am finding > trace files frequently on node#1. The error message in the trace file is: Did you mean "Windows 200*8* 64bit"? > opitsk: network error occurred while two-task server trying to send break; > error code = 12571 I hope with that kind of system that you have a support contract with Oracle. A MetaLink search did bring up an article or two about that, with one of those being a bug. I also see on Metalink that 10.2.0.3 is not certified to run on Win2K8-64bit. Perhaps this is one of the reasons? This seems like a Production system. Best to put in a Support call, especially since it's new. GL! Rich -- //www.freelists.org/webpage/oracle-l