Missing Chat windows

[ktager]

I installed the new update and played the game all day yesterday. When I logged into game today. My main chat window with about 5 tabs was gone. When i hit F10 key to show where all my windows are on the screen there is no black box where that Chat window was. ( this box was in default screen location for new install). Is there anyway to get it back or do i have to start over.

thanks,

Sce