Re-Started doing this again last night .... someone else started another thread on it too.
What MS Support says about this error:
CAUSE
This error occurs when your application indirectly calls a pure virtual member function in a context where a call to the function is not valid. In most cases, the compiler detects this and reports the error when building the application. But depending on how your code is written, sometimes the problem is detected only at run-time.
RESOLUTION
Calling a pure virtual function is a programming error, so you need to find the call to the pure virtual function and rewrite the code so it is not called.
So support - how is any of the following supposed to fix this for me?
1) Please try again.
2) Please check that your systems meets our requirements (Start, Login & Connection FAQ in the Support section of the website.)
3) Create a new account and try again.
4) Please scan your computer for viruses.
So, will a few of you please write to support that is also having this problem for first times. Maybe if enough write they'll figure out... umm it's our code / bug. But who knows if they even know about it since their support 'update' information site sucks and they don't update it!