Clicking small tab button (new tab button) freezes Excel

Hello,
Sorry, we will try to enhance it soon.

Still have issues.. it is NOT a keyboard thing.
I have rebuilt a whole new OS from scratch, I have installed a new fresh version of office...
STILL HAVE ISSUES..
I have not noticed it in other office apps (outlook, word) but I don't use arrows very often there . etc..
As I said even the mouse wheel no longer scrolls.. until I click off the tab and back on it.
There is a serious bug or something blocking it.. 
It can work fine for hours then suddenly stop.. once it happens it seems to be more frequent.. 
I have changed versions back to 32bit .. I have 64GB RAM so no swapping.. 
I am not a rookie.. but I can't see what is causing this to fail.. 
for addins it only shows adobe pdf maker office com addin
inquire
team foundation add-in

Hello,

Please make sure you have installed the latest version.
Please try to disable all the other add-ins in your Excel add-ins manager.
Thanks in advance.