Qemu weirdness under 6.0

[Remington]

FreeBSD vaio 6.0-STABLE FreeBSD 6.0-STABLE #4: Fri Dec 30 17:36:59 PST
2005 mrlol at vaio:/usr/obj/usr/src/sys/VAIO  i386

qemu-0.8.0_2/

Ive recently started using qemu on 6.0-S running inside Gnome 2.12 &
metacity. I've noticed that after about 15-20 minutes of running qemu my
desktop effectively stops responding to window changes, i.e. raising a
different window. So whatever window I'm using is the window I'm stuck
with.

Is this happening to anyone or am I just lucky?