Description of problem:

Opening CFME Web UI in Windows 7 IE11 ,

connecting to a provider Windows VM (tested with rhev, vmware)  
with VNC ,HTML5 button

Cursor is not visible , only in few cases :
* I" shaped cursor is visible in text input boxes if hover over
* the mouse pointer gets displayed on the task bar
Buttons , icons get highlighted when mouse is hover. 

Open VNC Console of Windows 7 VM in Internet Explorer: the mouse pointer is invisible inside the console
Open VNC Console of Windows 7 VM in Firefox: the mouse pointer is visible.

Tested in : 
Client: Windows Server 2012 R2, IE 11 (11.0.9600.18450).
Client: Windows 7, IE 11 (11.0.9600.18449).
With Infrastructure Provider: VMware vSphere 6.0 U2 (Host & vCenter Server)
and RHEV 

and with virtualbox image from modern.ie - Win7 IE11


Version-Release number of selected component (if applicable):
 CloudForms Version: 5.6.2.1.20160922130607_92d5b5e

How reproducible:
in test environment 

Steps to Reproduce:
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Actual results:

Expected results:

Additional info: