Problem - white window

[anonymous_user_127fe1d2]

Hello,

When i press from menu Help/Tutorials i got that screen :

Anyone know how to fix it ?
On video tutorial works perfect:

[anonymous_user_b9532c9a]

Hi ,

Could you post this onanswers.unrealengine.com so we can better assist you with the issue? Thank you!

Have a great day,