Sometimes it is helpful for us to know exactly what Mac you’re using, what devices are attached to it and what drivers and other software is installed to better understand your issue report.
To send us a System Profile report, go to the “Apple” menu int the upper left corner of your screen and select “About This Mac”.
A new window will show up with information about your Mac. Click on “System Report” in the “Overview” tab:
The System Report is generated and opens in a new window.
Go to File -> Save…:
Save the Report to your local disk (e.g. the Desktop) and send it to us by email.
Thank you very much for your cooperation.