[R-SIG-Mac] html help and browser vs. Rgui

[Carl Witthoft]

I have two separate questions about help windows.

First:  I'm running R2.12 at home under 10.5.8, and at work under 10.6.4 
(Intel iMacs in both cases).

At home, when I invoke help, e.g.,
  >  ?sin ,
I get the help page in the Rgui help window (and my web browser is not 
called).

But at work, the Rgui help window opens, remains blank, and the sin help 
page shows up in my default web browser.

Is there a way I can either force my work machine to use the Rgui 
window, or at the least stop the useless help window from opening up?

Am I able to use the Rgui help window at home just thru some luck of 
pre-existing conditions (from the  R 2.8 or 2.9 days)?

I checked, and the Library/Frameworks/.../base/R/Rprofile files are the 
same on both machines, as are my personal   .Rprofile and .Renvir files 
in my home directory.


Second: I noticed that on both machines, when I use the Search bar in 
the document editor window (Rgui editor window),  the little pop-up 
results panel displays the help page, with properly functioning links to 
referenced help pages.  This suggests the help system is working "behind 
the scenes" somehow on my work machine, even though it fails to access 
the Rgui Help window.    Anything I can do to adjust this?


Many thanks for your help.


Carl