My set-up is a bit unusual, so bear with me. I run Poser 7 from a USB disk; it isn't fully portable, but as long as I populate my AppData with the right stuff it's worked fine on four different XP installations, and on Windows 7 Professional 64 bit at work.

I recently had to replace the hard disk in my laptop, so I decided to finally install the Windows 7 upgrade. ;) This is Win7 Pro 32 bit, by the way.

However on this installation only, Python scripts that use Tk fail. Non-Tk scripts seem to be fine, as far as I've seen; and as I say, all scripts are fine on my other Windows 7 machine.

Somehow, I can't seem to find where I saved my screenshot of the error message; but I'll post this anyway in the hope that someone will recognise the problem. I'll add the screen shot once I get back home.

Any ideas welcome in the meantime.

Here's a line from the error message, that I found by searching for similar problems:

Quote - import _tkinter # If this fails your Python may not be configured for Tk

I found reference to this on the DAZ forums - but that referred to a Mac. I'm reasonably sure my PC hasn't turned into a Mac. :)

Searching for that error on the Wider World Web reveals much advice about fixing one's Python installation - but my scripts still work fine on another machine. :S I checked in case I had broken something last night...

Whilst perhaps of little use, the readme file with PP2014 includes this sentence:

"PoserPython scripts can make use of Tkinter to provide a GUI. Poser Pro 2014 ships with Tkinter 8.5. Scripts that were written for an earlier version of Tkinter might require adjustment. Please contact the author of your script for details. We are currently unable to support Tkinter 8.5 in 64-bit environments on the Mac."

I also see the quoted error message appears in the code (line 39) on my 64bit 2014Pro file in: "C:Program FilesSmith MicroPoser Pro 2014RuntimePythonLiblib-tkTkinter.py". But it's meaning is beyond my understanding.

Here's an example error report. This one is generated by Dimension3D's Copy Material script, but any script that tries to use tkinter fails at the same place, line 38 in Tkinter.py.

I wonder if this is a 32 bit / 64 bit related problem? That's the only material difference between my two Windows 7 environments, and looking at Tkinter.py, it checks for a 32 bit system and if found, imports FixTk. I'm trying to understand what's going on in there. :)  

I got it fixed. A DLL had somehow mysteriously moved itself out of the Poser directory; Win 7 32 bit didn't warn me that it couldn't find the file, and Win 7 64 bit must have had a copy elsewhere.

Not really Python related at all, then. Thanks to ockham for pointing me in the right direction, and thanks also to timarender for contributing. Sorry I didn't acknowledge your post earlier.