How to change the background color in AutoCAD 2011?

i am using autocad2010 in this version you could change color from tools menu bar then options then display then colors button then choose color you want from color tab

Go to Tools-Options-Display tab and Colors and select the desired scheme

In the model space do right click and go to options.
Make sure that “Display” is selected then choice “Uniform background” in “Interface element”.
In “Color” space choice select “color”.
If you suggest to choice green color move then the scroll up and down until you find the degree of green color you need.
You can see a green square appears in the lower right portion of the sight.
Trick OK for both sights.
You can choice also different suggestions from the “Context” for the Commands lines for example and so on, by the same way.

YOU CAN SEE THIS LINK http://www.youtube.com/watch?v=6hedWBN-pac

you can change it by options and display tab http://answers.yahoo.com/question/index?qid=AABbppj Cheers

In AutoCad we have Model Space background and Layout background.
Right Click > option In Option dig box select Display tab > Color their u have many options says2D model space , command line, Layout/Sheet etc.
select and change the color to change the background of Model Space select "2D Model space" in "Context" and select the color.
to change the commandline color click "commandline" in "Context" and select the color.
to change the layout background select "Layout/Sheet" in "Context" and select the color.
and Interference element should be "Uniform Background"

Asslam o alaiqum wa rahamtullah.
Dear if you want it fast just type OP and press enter after that it will give you you Options and settings screen Next goto display tab then click Colors then select either Paper space or Model space .
I definitely know that it might be model space .
After that click the colors option scroll down to black and it will give you the best visual appearance which the standard mostly used by Autocad operators.
Hope i have answered the question

Type in "preferences" or "options", then select "display", then "colors", then make sure that "uniform background" is selected and select "white" at the top right of the screen.
I would suggest using black.
It works a lot better for seeing the lighter colors.
http://www.youtube.com/watch?v=6hedWBN-pac