Lync 2010 deployment triggers post-install

Hi,

We're using LANDesk to deploy Lync 2010 to end users. Deployment runs fine, everything gets installed but when a user logs in for the first time, a lync post-install is trigerred.

If the installation was done minutes before, there is no problem but if the sdmcache was cleared then users get the error below. is there a way to avoid this?

we are using LANDesk 9.0 SP3

Thanks

Jo