I am experiencing problems with software updater in ubuntu 14.04 LTS. The image below will make it clear. I can not see the window and there is no maximize option when i prees alt+space.What can i do?The screenshot of the problem . notice this isn't minmized
I would first try to do an update/upgrade in a Terminal.
sudo apt-get update sudo apt-get upgrade
I personally do prefer 'synaptic' as application for program installation and update/upgrade Wikipedia: Synaptic
sudo apt-get install synaptic
If you are lucky, your problem is solved with an update/upgrade via a Terminal.
If an update/upgrade doesn't help, you could try to reset unity to default settings. One way to do this is...
sudo apt-get install unity-tweak-tool unity-tweak-tool --reset-unity
Found here... How do I reset my Unity configuration?