Set the following key to resolve a display issue that can occur with vsphere where citrix is in use.
HKEY_LOCAL_MACHINE\SOFTWARE\wow6432Node\Citrix\CtxHook\AppInit_Dlls\Multiple Monitor Hook
"Exclude"="VPXClient.exe"
MSI, App-V, SCCM, Appsense, Citrix. This blog contains hints and tips on these technologies. Primarily it is an online notebook of items that I may need to refer to in the future, or things I constantly forget!