Many of you tried dual-booting with Linux and Windows installation and maybe deleted the Linux partition. I'm sure that you still remember pain when you realized that Windows wouldn't boot anymore.
The solution for this situation is to reinstall Windows boot loader. Here is how to fix it:
Although Ubuntu 12.04 Precise Pangolin is LTS release, long term supported and stable GNU/Linux version, it has some issues.
We provide the list with the most common Ubuntu 12.04 Precise Pangolin problems and their solutions.
Default behaviour in Ubuntu 12.04 fir wireless conectivity is to ask a user for a password every time the system is started displaying message "Wireless Connection Authentication Required". Also, if you have a weak wireless signal it could happen that Ubuntu has problems to connect and continue asking for password.
Unity, a default desktop shell in newer Ubuntu releases doesn't have an option for changing default font type and size as Ubuntu had in the previous versions.
Somehow, I think that default font size in Ubuntu 12.04 Precise Pangolin is too big for modern screen resolutions. Here are instructions how to change default font size in Ubuntu:
1) Instal gnome tweak tool with the command:
Unity Launcher is an application switcher and launcher in Ubuntu Unity.
In some cases, it goes in the background, behind all windows and the Unity Shell, and it's not possible to move it to the frontend, in front all other windows (what is its default and normal behaviour). This happens no matter whether you enabled Unity Launcher auto hide option or not.