On the Note about Opengl make sure you have the right graphic drivers installed.
If its nvidia make sure you have the nvidia-glx installed then type sudo nvidia-glx-config enable in a Terminal.
If you have an ATi card install the ATi drivers either fglrx or the open source versions depending.
I used Envy to install the ATI drivers and Catalyst shows all is working properly.
Also, I wasn't aware of the repo having the old version of OA, I appreciate that info as well.