Citrix apps suddenly start appearing with borders within a window

Suddenly today all Citrix Apps are appearing within a Window  (ie borders,   backgound and a title) - see Notepad.exe attached.

Yesterday they were appearing  as a seamless app (is that the correct term?).

Why would thishave changed and where is it configured?
ADJ WorldSysAdminAsked:
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Dirk KotteSECommented:
are all users affected?
which citrix version do you use?
try to check configuration-logging from within management-console.
ADJ WorldSysAdminAuthor Commented:
Yes all users.

 I ended up restoring the VM -  but the issue will probably return after whatever caused it comes back. Anyway going to restart the Citrix VM tonight and see if an update or something has caused it. I'll also try and compare the registry entries pre and post reboot.

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ADJ WorldSysAdminAuthor Commented:
Root cause not found, VM restore resolved.
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