Need help from nice wow players :)

[helpplzwowboxing]

I read alot about your guild it sounds so good, i dont have a guild

Question
I got pwnboxer today and im running two accounts everything works find and i have both chacs side by side can run around ect invite into group but when i cast a spell wow frezzes and so does pwnboxer i have restarted wow 20 times turn computer off and everything still not working.
my computer has 8gb ram 2000gb, I7 580 invida card.

Has anyone had this problem or knows how i fix it u would be gread help i been trying to fix it for last 5 hours

thank u all