Earlier today VMware became aware of an issue affecting users of VMware View after applying Update 2 to their ESX 4.0 hosts. The problem only effects PCoIP, RDP works normally. There is a discussion of the problem in the VMware Communities here.
While our IT Teams work to resolve the issue, the Knowledge Base Team has responded by creating an up-to-the-minute live document at: http://kb.vmware.com/kb/1022830 and using @vmwarecares and @vmwarekb Twitter accounts to alert customers.
This Knowledge Base article will be updated as new information becomes available. If you have been affected by this, please read the KB.
We apologize for any inconvenience this may have caused you. If you know how to spread the word to your friends and colleagues, please do so.