ZCM11 icons do not appear on desktop

Good morning,

We have a strange issue of icons not appearing on our windows 7 workstations. It looks to appear randomly, i have turned on the logging on a workstation and after rebooting the icons did appear.

ZENworks Adaptive Agent Version: 11.2.3.21755
ZENworks Configuration Management Version: 11.2.4.0
Windows 7 Enterprise SP1

I have the log file but it's to large to attache.

I hope somebody can help me.

With kind regards,

Kees van Heuven