Hi,

Thanks for the pointer to that thread. 

Turns out I had found RCdefaultApp independently.
And even after setting everything I could find to "TextMate",
I'm still having the problem.  Even the UTI public.data
setting and application/octet-stream setting are now
for TextMate, but double-clicks go elsewhere.  Where
they go seems to change -- before it was TeXShop,
but now after a restart they are going to GraphicConverter!

--Bill





On Apr 4, 2009, at 10:25 AM, Joseph Pecoraro wrote:

It seems like somebody got this to work in October 2008 (on Leopard).
http://forums.macosxhints.com/showthread.php?t=79991

He used an application RCdefaultApp to change the public.data UTI
to be TextMate instead of TextEdit.

Quote:
"A few hours later, after reading up on UTIs, I looked through the  
list of
public.* utis in RCdefaultApp and I found the UTI public.data was set to
textedit-- i set it to textmate, and all my extensionless text files  
seem to
open properly now."

Here is a link to RCdefaultApp:
http://www.rubicode.com/Software/RCDefaultApp/

Let me know how it works out.