[GRASS5] [bug #2907] (grass) error message after starting with spearfsih dataset

this bug's URL: http://intevation.de/rt/webrt?serial_num=2907
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Subject: error message after starting with spearfsih dataset

Platform: WindowsNT/2000/XP
grass obtained from: Mirror of Trento site
grass binary for platform: Compiled from Sources
GRASS Version: 5.7.0

Setup seems OK.Startx working.grass57 starting graphical interface.While accessing Spearfish(location) with user1(mapset),there is an error message
"Ps.map.Error starting program,beacuse pq.dll is missing..."
The demo is starting properly with the appearance of the "Polonia"background picture,after 5-6secs the error message will block any further usage of Tcltk4 grass module...
Question:I downloaded and installed(on my estimation)ALL,according to the instructions.What is that "pq.dll"...?What I additionally must to complete to
make the Tcltk module enjoyable?
greetings,
steiner

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