[plt-scheme] (no subject)

I had a student program using htmlprag that was working great up until last week.  Since then when we run the program we get the following error.  

http://finance.yahoo.com/q/hp?s=KYN&a=4&b=13&c=2008&d=5&e=2&f=2008&g=d&z=66&y=0: close-output-port: expects argument of type <output-port>; given #<input-port>
. %htmlprag:parse-html : invalid input type: #f


Has anyone else had a similar problem?

Thanks in advance for the help!



      
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