I have a big issue on ibm domino 9.0.1 FP8 on a Windows 2012 R2. I have installed that client on a Citrix XenApp machine with the command switch CITRIX=1. I try two different version of the client, the basic version and the social edition version. However i still have an issue when i access to a database or i open a new mail. The client goes into a "Not Responding" state and the process of the client is in hang. All the data of the mailbox are on a network drive mapped as a drive letter. If i try with a new mailbox without any mail, the issue is not present. The issue is still present with RDP so the problem is not the ICA protocol. The same versions used on Windows 2008 R2 with the same mailbox and same network drive mapped does have the problem. Anyone know that problem?