When I connect to my company's VPN, my IM gets disconnected. Same is true if I'm streaming video. Have I configured it wrong? I am using OpenVPN on Ubuntu 12.10. Thanks!
This is probably down to the server configuration of your company. Do you have control of that? It sounds like it is pushing down a default route to ensure all traffic (including your IM and video streaming traffic) traverses the company network. If you don't want this behaviour then you probably want "split-tunneling". I'm not an OpenVPN user but a quick search threw up this thread which might help: