I've tried installing Ubuntu 11.10, uninstalling and reinstalling 11.04 etc. After day 1, though, some bug or the other shows up and then I spend the rest of my time looking up fixes on the Internet. I don't like criticizing Ubuntu a lot because I don't pay a penny for the awesome OS. What is the most stable version of Ubuntu for Notebook PCs?
My understanding is that the LTS release should be more stable. There are less new features etc. in those releases. The current LTS release is 10.04 and the next will be 12.04.
According to the Ubuntu download page:
Our long-term support (LTS) releases are supported for three years on the desktop. Perfect for organisations that need more stability for larger deployments.