[plt-scheme] excessive refresh

Also, I just noticed that the flashes are slower and more pronounced if 
the search bar is open.

Dave

Dave Herman wrote:
>> How do I reproduce this? I use Windows XP.
> 
> Take the following code and add the parens needed to finish the 
> definition of foo. After each paren you'll see the screen flash several 
> times in a row.
> 
> (define foo
>   (let ([abc 123])
>     (let ([def 123])
>       (let ([ghi 123])
>         (let ([jkl 123])
>           (let ([mno 123])
>             (let ([pqr 123])
>               'abcdefghijklmnoqpr)
> 
> If you make bigger regions you notice the flashes even more.
> 
> Dave
>