GNOME Windows blinking

Whenever I log into gnome, and try to open an application the windows continually blinks. I can log on successfully to LDXE, and open any window just fine. What I have tried doing is changing the display, and windows manager via /etc/sysconfig, but still no joy. I am running 11.3 kernel . Let me know if you need anymore info. Thanks.

Do you have the desktop effects enabled in Gnome? Try turning that off.

I do not have any desktop effects enabled not do I have compiz installed.