Comment 47 for bug 776999

I would strongly encourage people struggling with these issues on 64 bit Ubuntu to go with 32 bit Ubuntu instead. It will automatically use the PAE kernel so that you can take advantage of all your ram, and everything will be rock solid (or much closer to it) -- hugely, vastly better. That was certainly my experience. I lost so much productivity struggling with the 64 bit version that I hate to even think about it.