my first screen,(the one with icons), has gone a yellow orange colour, how do I get it back to its' original blue. I have read previous items on this and I do not think it is needing degaussed, I probably did it manually myself. All other items are normal colours, inc. Answerbank etc.
If you mean the background colour of your screen then right click any bit of the screen and then select properties. Along the top of the window that has opened there is a tab named Desktop. Click that then select your old colour from the box below. (If it is that of course)