'''Re-starting the quick-look software'''
*There is a memory leak in the quick-look software which causes its memory consumption to grow larger each time a new spectrum is loaded. To work around this, please restart the quick-look software once daily, or more often if required. Open a terminal and issue the command
ps aux | grep qlspupnic
* If nothing is returned, then the quick-look software is not running. If one or more lines are returned, then they describe running instances of the quick-look software.
where <PID> is the process ID of the process.
* Once all the quick-look processes have been terminated, start a new instance of quick-look by clicking on the quick-look icon on the left-hand task bar.
'''If the Quick Look does not extract spectra for science frames'''
* A dialogue box saying "Please Wait" lingers just below the image display and no extracted spectrum appears in the plot below
* Dismiss the dialogue box (and any others piled up behind it) until they are all gone
* Locate the Auto and Manual extraction options just below the spatial profile plot in the upper right of the Quick Look main tab
* Click on whichever one is not currently selected (return to the one you want if it's the one that was originally selected)
* Test by loading a science image by selecting one from the Observing Log tab on the Quick Look
* If the problem persists, again make sure the dialogue box(es) are dismissed before stopping and restarting the Quick Look GUI
'''If the slit runs anything but horizontally across the rear-of-slit image, the camera needs mechanical relocation'''
* the The rear-of-slit camera has a spring-loaded kinematic mount which can move slightly if the USB cable snags or the camera gets bumped somehow* if If this happens, the slit image will be displaced, making acquisition difficult* insert Insert the rear-of-slit mirror and turn on the slit-illumination to confirm that this is indeed the case* go Go out and grip the rear-of-slit camera assembly (which projects from the south side of the instrument cover) and gently jiggle it - the camera will pop back into its required position* use Use the slit illumination to verify that the slit runs horizontally across the image again
'''If the rear-of-slit camera window does not produce any images (though the exposures seem to count down), it probably needs a reset'''