Tech annoyances

Do you ever have little things that just frustrate you?

I'm going to list some things I notice some people do that just annoy me.

Maximize a web browser window on a widescreen monitor
DON'T DO IT. Most websites are designed in a 4:3 style and sometimes maximizing a web browser window causes the site to become wider, resulting in text going across the entire screen. Don't people realize that's not efficient for reading?

Trying to Maximize a window on a Mac
The Mac OS was designed to allow people to work with multiple windows and go back and forth to the desktop. Lately, there are so many Mac newbies out there that think they have to stretch windows to make it "maximized" like on Windows. Hello, that's not helping productivity! (Perhaps in some cases, I can see a need for a full screen app, but most users don't need it)

People confusing Windows and Office
I can't tell you how many times I've run into people that tell me they can just start over and install "Office XP" on their computers. Or if I ask if they have Office 2003/2007, they end up telling me if it's Windows XP or Vista.

Just recently I had a person confuse Internet Explorer 8 and Windows 7.

People that don't know when to single click or double click
I see people all the time that double click links on a website. Go get your computer operator's license and come back, please.

People that don't understand when to right click or left click.
Left click is the action button. Right click usually brings up context menus. The end.

I'm sure there are tons more, but those are the ones that immediately spring to mind.

What are your tech annoyances?