Bug in ST.hs?

Hi, if I want to use the following library, I get an error message. I'm using the binary distribution for Windows (hugs98-Dec2001.msi). I already checked the source distribution to see if there are any difference, but the files are the same. Reading file "C:\Programme\Hugs98\lib\exts\ST.hs": Parsing ERROR "C:\Programme\Hugs98\lib\exts\ST.hs":48 - Syntax error in type expression (unexpected `.') Thank you for your help. .\\artin Schmidt