The sign-in pop-up shows nothing in Office 365 apps

[zolbayarq]

I've installed the Office 365 on my Windows 7 machine. When I try to Sign in, a pop-up shows up. But it has nothing in it as you can see from this screenshot. 

What shall I do to fix this? I restarted my computer and nothing is changed. 

[#2]

Try resetting Internet explorer, download windows updates lastly run a repair on office.

[#3 · Accepted solution]

Turns out, it's a common issue on Windows 7 (just like this one). 

Tried updating the Windows without success. But upgrading to SP1 enabled me to install IE11 (from IE8) and that resolved the whole issue!