Joomla backend keeps kicking me out

[JFA]

I just installed a fresh Joomla ! 3.4.1, and I installed is as a Farsi site and I downloaded the language pack. I am going into the menu to add new menu items, but as soon as I click on Menu item type, it kick me out to the login screen.

[jcms]

create language flag: http://www.joomlabamboo.com/blog/how-to ... n-joomla-3

[AMurray]

Did jcms's suggestion fix the problem?

Other suggestions:

Check User Permission for creating menu/menu item:

(1) From Global Config, go to Menus Manager on the left-hand list, then click Options (button right hand top side). Check the permissions for creating menus. Are all actions "allowed" for your particular user log on / user gorup level - you should be logging on at least as Admin if not Super Admin.

Does it give you any indication of "that action is not allowed" or does it just kick you out without any error message?

Session Lifetime:
(2) Another reason I can think of, check your session lifetime under Global Configuration / System - increase from default 15, to say 30 or higher. Don't set it too high, but if it fixes the issue leave it at the new setting. At 15 minutes, it may be logging you out if the system is logged in but no activity is detected within that time frame.

[JFA]

I already had the language pack installed and it made the site RTL. I changed the session lifetime as suggested and so far is working, hopefully it will stay like this.
Another issue is that when I type in Persian my font shows as