Hi,

This is my first bug report, so please be gentle if I don't stick to protocol correctly. I'm also tired from spending about 8 hours tracking down this problem.

OS Affected: XP SP3 (maybe others as well, and I'm aware that python doesn't support xp anymore, but I have plenty of clients still on it). I suggest that you test this in more recent Windows versions as well.

To reproduce:
- Enable "Show Pop-up description for folder and desktop items" in Explorer->Tools->Folder Options->View.
- Create a small python script that opens the askopenfilename dialog.
- Open any local folder.
- Hover the mouse over some files and wait for the pointer to turn into an hourglass as the system tries to gather information for the pop-up for that file. (pdf's are ideal for this as it takes a few seconds for the pop-up to appear.)
- Once the pointer's an hourglass, double click on the file.

Workaround:
- Disable  "Show Pop-up description for folder and desktop items" in Explorer->Tools->Folder Options->View and the problem goes away.