[winGRASS] GDAL support

[Grant Yip]

Hi, i'm a beginner to GRASS.  I'm using grass 5.7 on cygwin and i'm trying 
to import a USGS dems using r.in.gdal but I'm running into problems. When I 
select the file to import, I receive an error message that the *.DDF format 
is not recognizsed as a suported file format.

I've tried reinstalling grass57 but still get the same error message.  Can 
anyone shed some light on this problem?  Thanks.

grant