Hi all I've messed up on light room and I don't know what I've done or how to fix it. When I go into an image the sliders for tint white balance exposure contrast etc has disappeared but when I click on one of the buttons they come up but nothing changes in the image. I'm very new to light room not used it much so I don't know what I've done or how to fix it. I hope someone can help. I had light room 5 but just upgraded to light room 6.
It sounds as though you have hidden the "Basic" Development panel.
Three ways to make it visible-
1. Press CTRL+1
2. on the top menu- Window > Panels > Basic Check there is a tick beside 'Basic'
3. Right-click on another panel header and check/tick "Basic"
I assume the buttons you talk about are the Local Adjustment Tools. They only work on the areas where you brush with the mouse cursor.
I suggest you watch some tutorials- Lightroom Tutorials by Julieanne Kost
and grab a copy of Victoria Bamptons free eBook http://www.lightroomqueen.com/articles/ (Tick above Sign Me Up)