ITS Mobile screen scaling down on Falcon X3

Dear experts,

one of my customers encountered a problem when using an ITS service on a Datalogic Falcon X3.

The HTML Templates where generated with MOBILE and MOBILE4 Style.

When using the device the browser display (internet explorer on winCE) scales down automatically after some time.

Please see the the attached screenshots.

This Problem can not be re-produced using a "normal" Browser or on an another device type.

Did anyone encounter the same problem?

Thanks in advance an best regards

Dominik