I think this is the setting that TomMar is mentioning:
In some cases there may be PCoIP zero client log entries such as:LVL:1 RC:-500 MGMT_IMG :(pkt_rx_resource_check): Insufficient imaging resources. Dropping imaging data.Workaround:This issue will be addressed in an upcoming firmware release. To workaround, determine if the color codec is the issue, set the following registry key as shown below to see if the problem goes away.pcoip.enable_new_color_coding 0 The registry key is a DWORD value.Note: Ensure you have the necessary backups in place and are familiar with changing the registry before proceeding.To change the registry key:
1. Click the Windows Start button and type regedit in Search programs and files.
2. Browse to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Teradici\PCoIP\pcoip_admin.
(If you do not see the 'Teradici' key and subsequent keys, you will have to create them)
3. Add new DWORD Value and name it pcoip.enable_new_color_coding.
4. Give this a Value data of 00000000 and click OK.
5. Add new DWORD Value and name it pcoip.enable_temporal_image_caching.
6. Give this a Value data of 00000000 and click OK.
7. Disconnect/Reconnect your PCoIP session for the change to take effect.