Phantom 3rd Screen

[thoath]

Hello im one of the ICT technicians here at our council
we have over 600 dell d3100 port replicators that use your Disply Link software on differant modelled dell monitors, ever since we moved form desktops to laptops (hot desking) we have been using this kit and software but have on ere occuring fault.

When users move desks they get a phantom 3rd screen even though we only use an exturnal monitor and their laptops to use dual screens

we have tried removing the 3rd screen under screen resolution but it will not delete it, the only way we can get rid of this 3rd screen is to uninstall the intel graphics drivers and also the display link drivers

then install the graphics for the laptops and then install display link again then connect the box and then all is well.

Is there a way to sort his fault please, we are spending around 40mins each time to sort this for our users

we use 32bit and 64bit windows pro 7

Thank you