# Priority glitch (probably a problem with PTB update)

**URL:** https://psychtoolbox.discourse.group/t/priority-glitch-probably-a-problem-with-ptb-update/1175
**Category:** Uncategorized
**Created:** [July 17, 2006, 6:24pm UTC](https://psychtoolbox.discourse.group/t/priority-glitch-probably-a-problem-with-ptb-update/1175 "2006-07-17T18:24:42Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)
#### Post date: [July 17, 2006, 6:24pm UTC](https://psychtoolbox.discourse.group/t/priority-glitch-probably-a-problem-with-ptb-update/1175/1 "2006-07-17T18:24:42Z")

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Hi Mario,
  

First - thanks for the heads-up about the MinimalisticOpenGLDemo - I hadn't updated my PTB for a while, and hadn't seen it. 

  

However - 

  

Once I did update it, the Priority function stopped working for me. On the list of modified functions after my update, I saw that Priority.m had a "C" next to it, so it seems that something went wrong with the download. I seem to remember you emailing me a modified (perhaps early-beta?) version of Priority that fixed an earlier problem that I had - could that be the cause of the new errors? And what should I do now?

  

The specific error message I'm now getting is: 

  

??? Error: File: /Applications/MATLAB704/toolbox/Psychtoolbox/PsychPriority/Priority.m Line: 342 Column: 1

Unexpected MATLAB operator.

  

The code in question ran without problems before the update.

  

Thanks for your time,

  

Mark  

 

~~~~~~~~~~~~~~~~~~~~~~~~~~

Mark Lescroart

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USC Neuroscience Graduate Program

Image Understanding Lab

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