My creative cloud desktop screen is blank. I apparently have a OOBE problem but my chat session was interupted right when I was getting the steps to fix it.
follow solution 2 here, CC desktop lists applications as "Up to Date" when not installed
>desktop screen is blank
Or, the steps in these links
BLANK Cloud Screen http://forums.adobe.com/message/5484303 may help
-and step by step http://forums.adobe.com/thread/1440508?tstart=0
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