Power View & Power Pivot not working in 365 Pro plus

Hi,

I installed Office 365 ProPlus today.   I've enabled Power Pivot and Power View.  I see them on the ribbon but neither of them work.  Clicking on the Manage button on the Power Pivot makes the ribbon go grey with no response.

Clicking on Power View flashes a dialog box "Working on Opening Power View Sheet" and then nothing happens.

I'm running Win7 64Bit with 64 bit Office 2010 installed & 64 Bit Office 2013 365 Pro-Plus installed.

Any ideas?  I'm bought Pro-Plus so I can use PowerView & PowerPivot but these features are not working.

I've tried repairing the install from control panel but this has no effect.

Please advise