Thanks for testing this issue in your machine and providing me with helpful
tips.
Despite the fact I've updated X11 to the most recent one following a
suggestion, I still get it to "hang".
So perhaps this issue is specific to my Macbook air (which has 4G memory
and 1.7 GHz processor).

Jason,



On Sat, Feb 25, 2012 at 8:10 PM, David Winsemius <dwinsemius@comcast.net>wrote:

>
> On Feb 25, 2012, at 5:55 PM, John Maindonald wrote:
>
>  I can open several (I was going to say 'as many as I like", but
>> that is hard to verify) windows on my setup.  I do have a very
>> recent update to XQuartz installed: XQuartz 2.7.1_rc2 (xorg-server 1.11.4)
>> (I have just now been advised of the release of 2.7.1, which I have duly
>> installed.)
>>
>> I notice the following at http://xquartz.macosforge.org/**trac/wiki<http://xquartz.macosforge.org/trac/wiki>
>>
>> "
>> OS-X Software Updates have included some of the work done by this
>> project, but for various reasons, Apple cannot ship the latest and greatest
>> version offered by this site. Since our package clobbers Apple's X11.app,
>> their SU will clobber ours. Because of this, you may experience conflicts
>> after doing a Software Update from Apple. It is suggested that you install
>> the latest XQuartz release after installing an update to OS-X Leopard.
>> "
>>
>> I am running OSX 10.7.3 (Lion).  I have not had any issues with conflicts
>> of which I am aware.
>>
>> John Maindonald             email: john.maindonald@anu.edu.au
>> phone : +61 2 (6125)3473    fax  : +61 2(6125)5549
>> Centre for Mathematics & Its Applications, Room 1194,
>> John Dedman Mathematical Sciences Building (Building 27)
>> Australian National University, Canberra ACT 0200.
>> http://www.maths.anu.edu.au/~**johnm <http://www.maths.anu.edu.au/~johnm>
>>
>> On 26/02/2012, at 7:01 AM, R. Michael Weylandt wrote:
>>
>>  One can always(?) open a new device using dev.new() which defaults to
>>> the quartz device on my machine.
>>>
>>> FWIW, I can get a similar problem with x11 but I have long-standing
>>> troubles with my X11 install that I've never bothered to track down so
>>> I'm not the best test case.
>>>
>>>
> I just tried it on my laptop which has the "old style" x11 installed, the
> one whose icons on the Dock is the plain white one with a grey X, and which
> labels itself XQuartz 2.1.6 (xorg-server 1.4.2-apple33).  I'm unable to get
> it to "hang" except for the fact that when the window opens, the focus is
> shifted to that window and typing causes no response until one clicks back
> into the (GUI) console. Repeated invocations of x11() without plotting do
> not cause R to "hang". So I guess my only contribution is that an older
> version of OSX and X11 does not necessary cause this problem. And I would
> request a better decription of "hang" on Mr Love's part.
>
>
> MacOS 10.5.8
>
> > sessionInfo()
> R version 2.14.1 Patched (2012-01-02 r58038)
> Platform: i386-apple-darwin9.8.0/i386 (32-bit)
>
> locale:
> [1] en_US.UTF-8/en_US.UTF-8/en_US.**UTF-8/C/en_US.UTF-8/en_US.UTF-**8
>
> attached base packages:
> [1] splines   stats     graphics  grDevices utils     datasets  methods
> base
>
> other attached packages:
> [1] quantreg_4.76    SparseM_0.91     rms_3.4-0        Hmisc_3.9-1
>  survival_2.36-10
>
> loaded via a namespace (and not attached):
> [1] cluster_1.14.1 grid_2.14.1    lattice_0.20-0
>
>
>
>  Michael
>>>
>>> On Fri, Feb 24, 2012 at 9:25 AM, Jason Love <jason.love1492@gmail.com>
>>> wrote:
>>>
>>>> Hello R users,
>>>>
>>>> Using x11() command, I was able to create a new (2nd) plot window.
>>>> However,
>>>> I was not able to create another (3rd) plot window as x11() gets
>>>> immediately frozen.
>>>> Does x11() command only allow 2nd plot window or could it be related to
>>>> the
>>>> memory capacity limit?
>>>> Also, please let me know if there is any alternative way of opening a
>>>> new
>>>> plot window other than using x(11).
>>>>
>>>> Thanks in advance,
>>>> Jason,
>>>>
>>>>      [[alternative HTML version deleted]]
>>>>
>>> --
>
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
>
>
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>

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