Help, my Twitter's gone into MOBILE mode on my computer and I hate it and can't move it.

I've looked and looked on my home screen and it's as if the bit that says "Standard / Mobile" at the bottom has vanished.

This is what it looks like: http://i54.tinypic.com/5vvvbc.jpg

Twitter help is useless.

I'm about to go friggin mental.

WHAT'S A GIRL TO DO

Pls help kthxbai