Compare data of 2 columns if found then remove entire row of that column and if not found then highlighted with some color

Hi,

I am using excel 2010 and my question is that I have data in many columns. Lets say I have to compare date of column B with Column A ,if(data of Column B) is found in Column A then delete entire row of column A.... if not found then column B highlighted with some color

Nick's picture

we have this that might be of

we have this that might be of use:
http://excelexperts.com/VBA-Tips-Compare-2-Data-Sets