Upper bar disapears with Adobe Acrobat Reader

Hi

Hope you guys can help

Just got a new Laptop and installed Acrobat Reader so i can open my PDF Files.

But when i open a PDF File, the upper bar disapears sometimes (Minimize/close). 

Sometimes right after i open the file or just when i move the mouse op to minimize it disapears.

It's like it "Jumps" and "freezes" on the screen, but the Acrobat Reader is fully functional, I can scroll and open toolbar and so on.

Sometimes I can provoke the bar to appear if i minimize Acrobat Reader on the Windows bar at the bottom and open the Acrobat Reader again. 

Checked if there was any updates for it, but it is fully updated.

Best regards 

Miki