# Issues with KbCheck **URL:** \ **Category:** Uncategorized\ **Created:** [October 29, 2013, 1:34pm UTC](https://psychtoolbox.discourse.group/t/issues-with-kbcheck/286 "2013-10-29T13:34:24Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![jagreenwoodyh](https://avatars.discourse-cdn.com/v4/letter/j/e47c2d/32.png) [@jagreenwoodyh](https://psychtoolbox.discourse.group/u/jagreenwoodyh)\ **Post date:** [October 29, 2013, 1:34pm UTC](https://psychtoolbox.discourse.group/t/issues-with-kbcheck/286/1 "2013-10-29T13:34:24Z")
Hi, Long time user, first time writer. I'm setting up a new iMac and am having problems getting psychtoolbox to recognise the keyboard. e.g., a simple command like > \>\> escapeKey = KbName('q'); gives the error: ---- Error using KbName (line 876) Key name "q" not recognized. Maybe you need to add KbName('UnifyKeyNames'); to top of your script? ---- I definitely have UnifyKeyNames at the top of my script. In fact, running KbDemo gives the same error: --- Error using KbName (line 876) Key name "ESCAPE" not recognized. Maybe you need to add KbName('UnifyKeyNames'); to top of your script? Error in KbDemo\>KbDemoPart1 (line 95) escapeKey = KbName('ESCAPE'); Error in KbDemo (line 74) KbDemoPart1; ---- PsychHID and other commands work fine, so for instance if I run > \>\>pause(0.5); [touch,secs,keyCode]=PsychHID('KbCheck') whilst holding down the 'q' key, I can see in keyCode that the 20th value is 1. But KbName itself fails to generate the labels for this as it used to on my old machines. Any ideas? I am running OS X 10.8.5 on a 27" 2012 iMac with the Intel Core, Nvidia GeForce GTX 675MX. Psychtoolbox is up-to-date (version 3.0.11). Potentially related: Psychtoolbox doesn't seem to recognise my OS, and gives warnings like this when my experiment is initiated: ---- I do not know your operating system, so I don't know where I should store Preferences.  I'm putting them in the current working directory: ---- I've had java issues in the past, so checked that classpath.txt had the path to PsychJava and so on. If I do that, and run IsPsychJavaPathSet then it returns 1. Interestingly, once I run my code, this seems to be reset and IsPsychJavaPathSet returns 0. Perhaps there's a java issue - or perhaps I'm doing something daft. Any help appreciated! Here's the full info dump when I start my code: PTB-INFO: Connection to Psychtoolbox kernel support driver instance #0 (Revision 0) established. PTB-INFO: Connection to Psychtoolbox kernel support driver instance #1 (Revision 0) established. PTB-INFO: Disconnecting from kernel driver instance #1 for detected Intel GPU for safety reasons. setenv('PSYCH\_ALLOW\_DANGEROUS', '1') to override. PTB-INFO: This is Psychtoolbox-3 for Apple OS X, under Matlab 64-Bit (Version 3.0.11 - Build date: Sep 29 2013). PTB-INFO: Type 'PsychtoolboxVersion' for more detailed version information. PTB-INFO: Most parts of the Psychtoolbox distribution are licensed to you under terms of the MIT License, with PTB-INFO: some restrictions. See file 'License.txt' in the Psychtoolbox root folder for the exact licensing conditions. PTB-INFO: Deficient Apple OS/X 10.7 or later detected: Would use fragile CoreVideo timestamping as fallback, PTB-INFO: if beamposition timestamping would not work. Will try to use beamposition timestamping if possible. I do not know your operating system, so I don't know where I should store Preferences.  I'm putting them in the current working directory:       /Users/john/Documents/MATLAB. PTB-INFO: You are using a multi-display setup (2 active displays): PTB-INFO: Please read 'help MultiDisplaySetups' for specific information on the Do's, Dont's, PTB-INFO: and possible causes of trouble and how to diagnose and resolve them. PTB-INFO: According to the operating system, some of your connected displays do not seem to PTB-INFO: be switched into mirror mode. For a discussion of mirror mode vs. non-mirror mode, PTB-INFO: please read 'help MirrorMode'. PTB-INFO: OpenGL-Renderer is NVIDIA Corporation :: NVIDIA GeForce GTX 675MX OpenGL Engine :: 2.1 NVIDIA-8.16.74 310.40.00.10f02 PTB-INFO: Renderer has 1024 MB of VRAM and a maximum 996 MB of texture memory. PTB-INFO: VBL startline = 768 , VBL Endline = 822 PTB-INFO: Measured monitor refresh interval from beamposition = 8.333858 ms [119.992446 Hz]. PTB-INFO: Will use beamposition query for accurate Flip time stamping. PTB-INFO: Measured monitor refresh interval from VBLsync = 8.332168 ms [120.016785 Hz]. (50 valid samples taken, stddev=0.055940 ms.) PTB-INFO: Reported monitor refresh interval from operating system = 8.333333 ms [120.000000 Hz]. PTB-INFO: Small deviations between reported values are normal and no reason to worry. PTB-INFO: Support for fast OffscreenWindows enabled. Snd(): Initializing PsychPortAudio driver for sound output. PTB-INFO: Using specially modified PortAudio engine, based on offical version: PortAudio V19-devel WITH-DIM