i3 freeze

[Robert]

Greetings

I am trying different window managers and am having some difficulties
with i3. I like this window manager a lot and would like to get past
this problem.

I am running 9.0 Beta3 but it also happens on 8.2 Stable.

When I am in Firefox and attempt to view a video either on a website or
from an email (gmail) using mplayer, everything freezes. I cannot go to
any other desk top via a mouse click or using the keyboard. I am unable
to do anything other than ctl-alt-fx and get to another virtual
terminal. Going to another virtual termonal and running top show the
system is 100% idle and the mplayer process is at STOP. I can go to
virtual terminal 1 and use ctl-C to kill the x session. 

The weird part is if I change my .xinitrc to exec xmonad instead of i3,
then everything works as it is supposed to. I can view the videos and
move using the mouse or the keyboard.

Can anyone give me a suggestion? I can supply any other date from this
system that is needed.

Thanks

Robert