Well, I have been having this problem on my old computer, Compaq. I tried searching on google, youtube, and other searching. I have been having this problem since the first time I use xwom. If you want to see the picture, here is the link:
Works perfectly when wanting to choose server: http://prntscr.com/xbpeq
Error when trying to go on 1 of the server: http://prntscr.com/xbph7
Thanks, hope you guys can fix this especially to HelloWorldCool & dzienny