I have recently downloaded the 12.04 Ubuntu version and decided to try using Ubuntu after hearing many good things about it. So far, I've been frustrated with the results.

The Unity Launcher doesn't respond on my computer at all, especially when I try to click the Transmission icon. I click it and nothing happens. It randomly happens to other applications as well. It does open when I click on the icon with the right mouse button and choose "Start transmission minimized" though.

Also, the menu is really jumpy and when I click something, it just scrolls up or down and ends up opening something else.

I have been really disappointed with this Unity feature so far and I just want to switch back to my old OS because of it.

Can someone help me? I really want to give Ubuntu 12.04 a chance. But it just seems so wrong.

As far as I recall, this didn't happen before the last update (at least I didn't notice it all THAT much before).

Also, I have this thing happening to me all the time:

And my last issue is that each time I'm trying to open an external file (aka: I download a word document from my company's website), it just doesn't open it with the icon that was already in the menu when the OS was installed (I didn't move it and didn't do anything with it). It just randomly creates another icon.

As far as I understand, the Unity Launcher is a combined launcher and task bar. So the same icon is used to launch an application and to restore it, in case it in minimised or hidden. Now, when I open an odt file from my browser, by either opening it or saving to my computer and then opening, it doesn't use the LibreOffice Writer icon I already have, but it shows a new, additional LibreOffice Writer icon. Also, clicking the icon I already have closes all instances of Writer.

What am I doing wrong?