For GD2 the test url should be:
If still a issue then
open a support ticket and let us know what happens.
I'm sorry if I'm cross-posting or hijacking the thread. I can move my posts to a new one if that is the case.
Any way, I did the test and then I got a blank page.
No error, just a blank page.
I try with I.E. and Firefox and the same result. In both browsers I was log-in.
I'm sure is someting stupid I did when I re-install the softare... I just can't find what that could be.