Display Problems with DX0D 5010

Hello,

I am having a random problem that appears to be affecting users on Windows Terminal Server 2012 R2 that are on Wyse 5010 Terminals. All my terminal have dual monitors.

These blocks appear on screen that let you see the terminal server background through the application. If you hit the start key on your keyboard the start menu appears just fine but when you go back to the desktop the squares remain.

If I shadow the session, I don’t see the problem. If I use VNC to get into the terminal I see the issue.

Here is a copy of my config: The users use RDP Session 3.

;*************************************************************
;*                                                           *
;*         This wnos.ini file was generated with the         *
;*              Configuration Generator 7.7.01               *
;*              Copyright by Thomas Moellerbernd             *
;*                                                           *
;*                 http://www.technicalhelp.de               *
;*                                                           *
;*************************************************************

;*************************************************************
;*                          General 1                        *
;*************************************************************

autoload=2
AdminMode=yes Username=admin Password=password

;*************************************************************
;*                          General 2                        *
;*************************************************************

reboot=yes Time=23:00
EnableGKey=yes

;*************************************************************
;*                          General 3                        *
;*************************************************************

Autopower=yes
AutoSignoff=yes Reboot=yes
ShutDown=standby
SysMode=VDI ToolbarStay=2

;*************************************************************
;*                          Privilege                        *
;*************************************************************

Privilege=None

;*************************************************************
;*                         Peripherals                        *
;*************************************************************

Language=Us ManualOverride=yes
Device=audio EnableSpeaker=no

;*************************************************************
;*                           Display                         *
;*************************************************************

DeskColor="255 255 255"
DesktopColorDepth=16
Desktop=LOGOCOLOR.jpg Layout=Center
Dualhead=yes MonitorAutoDetect=yes
Screensaver=15 LockTerminal=no Type=0
ShutDownInfo=yes

;*************************************************************
;*                             Time                          *
;*************************************************************

Timeserver=dc.DOMAIN.com Timeformat="12-hour format" Dateformat=mm/dd/yyyy
TimeZone='GMT - 05:00' ManualOverride=yes Daylight=yes Start=030207 End=110107 

;*************************************************************
;*                           Network                         *
;*************************************************************

Device=Ethernet Speed="Auto" StaticIPWaitFileServer=255
Community=itnssnmp
DNSIPVersion=ipv4
SignOn=No
MaxVNCD=1
VncPassword="password"
VncPrompt=No Accept=10 

;*************************************************************
;*                       General Session                     *
;*************************************************************

SessionConfig=ALL DisableSound=Yes

;*************************************************************
;*                             RDP                           *
;*************************************************************

SessionConfig=RDP DefaultColor=1 Dragging=no Animation=no Theme=no EnableGFX=yes EnableTSMM=no USBRedirection=RDP

;-------------------------------------------------------------
;-                        RDP Session 1                      -
;-         Each line but the last must end with a  '\'       -
;-------------------------------------------------------------

CONNECT=RDP \
       Host=TSFARM \
       Description="REMOTE" \
       AutoConnect=No \
       Reconnect=No \
       Colors=16m \
       Fullscreen=yes \
       Domainname=DOMAIN \
       KeepAlive=5 \
       LocalCopy=no

;-------------------------------------------------------------
;-                        RDP Session 2                      -
;-------------------------------------------------------------

CONNECT=RDP \
       Host=TSFARM \
       Description="REMOTE (1440x900)" \
       AutoConnect=No \
       Reconnect=No \
       Colors=16m \
       Fullscreen=yes \
       Resolution=1440x900 \
       Domainname=DOMAIN \
       KeepAlive=5 \
       LocalCopy=no

;-------------------------------------------------------------
;-                        RDP Session 3                      -
;-------------------------------------------------------------

CONNECT=RDP \
       Host=remote.DOMAIN.com \
       Description="New Terminal Server Farm" \
       AutoConnect=No \
       Reconnect=No \
       Colors=high \
       Fullscreen=yes \
       Rdp_No_Dragging=yes \
       Rdp_No_Animation=yes \
       Rdp_No_Theme=yes \
       Rdp_No_Fontsmoothing=yes \
       Domainname=DOMAIN \
       Mapdisks=yes \
       KeepAlive=5 \
       WyseVDA=yes \
       AudioQualityMode=2 \
       LocalCopy=no

;*************************************************************
;*                      General 2 Special                    *
;*************************************************************

Include=$mac.ini

The terminals had 8.3_12 and I have updated them to 8.3_14. I am not quite sure what to do and I have an open ticket with Dell and the technician has no idea what the problem is either.

Any advice would be appreciated.