Shortcuts Dropping Out of Fences

We have one user uses RDP to connect to his PC from home.  He also logs into a second PC in a meeting room using a roaming profile.  All PCs are Windows 7 SP1 and all screens have the same resolution.

His shortcuts keep getting dropped out of his five Fences when he moves between PCs.  He’s running v2.13 on both PCs and all settings are the same – even the colour of the Fences.