I am having a problem with my drracket editor running extremely slow.  I am 
using ubuntu 10.10.  I downloaded the latest version of racket (5.1) I used to 
have (5.0).  Ever since then my editor is super slow.  I don't know if their is 
coincidence or the reason why.   For example, I try to highlight 3 lines of 
code in the drracket editor and it literally takes 6 seconds to finishing 
highlighting!(I click and drag the mouse).  If I hit enter say 20 times then it 
takes close to a minute to execute all of the enter commands.  The bottom part 
of running the program is fast, it is just the top part (editor) that is slow.  
Does anyone know what the problem might be? 
                                          
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