>  I wonder if lion is incorrectly reporting its screen dimensions to pyglet.
> Is the problem independent of which units you use?

> Jon

> On 26/10/2012 15:21, Sarah C wrote:

> Hi Jeremy,  

>  Okay thank you- at least that narrows it down to being a retina display
> thing then. Perhaps I need to find a laptop with a good enough graphics
> card, but less fancy screen!

>  For the record, this happens every time I run a PsychoPy experiment on
> my macbook, and I've tried a few experiments created by other people.

>  Thanks for the quick response!
> Sarah

> On Friday, 26 October 2012 15:08:56 UTC+1, Jeremy wrote:

>> I get that display offset as well, but only sometimes (retina display
>> mac with Mountain Lion). it's very mysterious to me what triggers it.
>> when it does happen, I get a ctypes error about _check_agl (or
>> something like that). I think this is happening when pyglet is
>> imported, but I'm not really sure. I can't reliably reproduce it,
>> unfortunately. rebooting does not clear it up.

>> --Jeremy

>> On Fri, Oct 26, 2012 at 9:39 AM, Sarah C <sarah....@hotmail.co.uk>
>> wrote:
>> > Hi Jon,

>> > Thanks for getting back to me. Your explanation seems logical, but
>> > unfortunately changing the text into images has not solved the problem
>> for
>> > me.

>> > I could run the experiment on my own Macbook on which the timings work
>> fine
>> > (and this would be more convenient) but I have a problem with the
>> display
>> > that I cannot seem to fix either. The experiment runs off centre on the
>> > screen- please see attached image where the question mark should be in
>> the
>> > centre of the screen. This could be related to the Macbook being a
>> retina
>> > display model as the issue doesn't happen on any of the other computers
>> I've
>> > tried it on with various screen sizes and resolutions. Nothing I change
>> in
>> > the monitor centre (screen distance, size, screen width) seems to have
>> any
>> > effect on the experiment when I run it. I've realised I need to change
>> the
>> > selected monitor in the experiment settings to match the new monitor
>> > settings I've added (I really am a beginner!), but is there something
>> else
>> > I'm missing to make these changes take effect?

>> > Any more advice would be very much appreciated!
>> > Sarah

>> > On Friday, 26 October 2012 12:12:14 UTC+1, Jon wrote:

>> >> Most likely your windows laptop and older macbook have weaker graphics
>> >> cards (or CPUs). In particular it is taking a long time to render your
>> text
>> >> stimuli which delays the initial presentation of the images.

>> >> Text is, in general, slower to render than images. So if you need to
>> work
>> >> on a slower machine you could try constructing your text as an image
>> (e.g.
>> >> in poewrpoint and saving as an image file) and then draw that instead
>> of raw
>> >> text.

>> >> I've seen a lot of people do this for instructions screens especially
>> >> where they can add lots of complex elements (images and decoration) in
>> the
>> >> screen, which are easier to set up in powerpoint.

>> >> Jon

>> >> On 25/10/2012 15:14, Sarah C wrote:

>> >> Hi,

>> >> I'm new to PsychoPy and have created my first experiment using the
>> builder
>> >> on version 1.75.01 on a Macbook with 10.8.2.

>> >> I would like the presentation of my experiment to run as follows:

>> >> Fixation point (text) presented for 0.6s
>> >> Target images (image files) for 0.6s
>> >> Response (text) until keyboard response

>> >> The timings seem to run fine on my Macbook, but when I try to run the
>> >> experiment on a laptop running Windows Vista (still with PsychoPy
>> 1.75.01)
>> >> the timings do not display properly. The fixation point seems to
>> appear for
>> >> about 1 second and the target images only flash up very quickly
>> (perhaps
>> >> 0.1s). I have also tried this on an older macbook (sorry, I don't know
>> the
>> >> details) and the same thing happened.

>> >> Any help would be really appreciated. If this has already been
>> discussed
>> >> elsewhere and I've missed it, I'd be grateful for a link.

>> >> Thanks,
>> >> Sarah
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>> >> Jonathan Peirce
>> >> Nottingham Visual Neuroscience

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