I will try this again now that I am a member. Does anyone know how to install Blt 2.4 on XP. I have Pmw 1.2 in Py23 running nicely. Installing Blt 2.4z (tcl8.4) fails. Putting copies of the two dlls in windows/system and putting copies of the \blt2.4 on the path still yields :...no module named Blt..." Help Terry Acree