Wireless adapter USB 2.0, Edimax EW-7318UG slows down and hangs Feisty

[Andis Lazdinsh]

Hello!

I have strange problem with USB wireless adapter Edimax EW-7318UG. When 
I test it before install with Feisty live CD  everything was fine and my 
network card was automatically recognized. But after I installed Feisty 
to hard disk, this wireless adapter hangs system. When I remove it 
before booting, system loads normally, but as soon as I plug wireless 
adapter, system  goes down and every movement of mouse takes several 
tens of seconds. Removing of wireless adapter after that don't change 
anything. I have to restart using reset button.
I tried to look in Ubuntu forums for the solution, but there was nothing 
related to this problem.

Please, any solutions or directions!

Sincerely,

Andis