On Thu, 11 Oct 2012, Summers, Peter wrote:
 I have a student who's having trouble installing gretl on her 
 MacBook Pro, running Mountain Lion. After she'd followed the steps 
 on the gretl site, I had her uninstall & reinstall gretl as per 
 the recent thread on this topic. Gretl shows up in her 
 applications, but it looks like only the cli version is working. 
In itself, that would argue that XQuartz is not installed.
 I had a brief look at her directory structure and couldn't find 
 anything relating to the gui version. 
/Applications/Gretl.app/Contents/Resources/bin/gretl_x11
 She's tried the ./gretl command from the terminal window but 
 nothing happened. 
That's actually very hard to believe. No error message, no nothing?
Mountain Lion seems to have a weird bug whereby, when you install 
gretl in the usual way by dragging from the disk image to 
/Applications, some (library) files end up truncated to zero bytes. 
The fix -- it seems -- is to ensure that /Applications/Gretl.app is 
deleted, then copy Gretl.app into place manually via the command 
line.
sudo rm -rf /Applications/Gretl.app
sudo cp -r /Volumes/gretl/Gretl.app /Applications
Allin Cottrell