import os

os.

After entering the above code in a new idle editor window, the popup method completion window appears.  If I navigate with the down-arrow key, the list starts scrolling fine all the way down to spawnv, which I can select, but if I try to use down-arrow once more and scroll the list (to what would be startfile if I could reach it), idle hangs.  

Pure pagedown works all the way to in the popup to write, but then it I use up-arrow idle hangs when I try to scroll up beyond startfile to what would be spawnv.

I am running Windows XP, service pack 2.  On May 5 I installed and am running python-2.5.1.msi.

I started idle form idle.bat while in the idlelib directory.  I also ran \Python25\Lib\idlelib\idle.pyw from other directories with the same result.

I have no such problem with modules os.path or string.  I did not think of a module to try which has a list of methods as long as os.