[R] beginner plotting with dates

[Rebecca Freeman Grais]

Dear R-Help,

I am a beginner and have a question about plotting dates.  I am creating 
a very simple boxwhisker plot , boxplot(Total Case~Month).  When the 
boxplot appears, the months are re-ordered alphabetically.  I would like 
to be able to preserve the order, i.e. Jan, Feb, March, etc.  Is there a 
way to set the x-axis so that it is not automatically re-ordered? Thanks 
in advance for your help.