Multiple issues, no visible solutions. Persevere or go for refund?

[crocdoc]

What I find strangest is that it affects a mouse which isn't even plugged in via the docking station. It has taken me a while to type this because the mouse keeps freezing and then stuttering. The other unusual thing is that my monitor calibrations keep popping back to default (especially the laptop's screen), so I have to relaunch Spyder every few minutes to reset it. I am in an industry in which having my monitors calibrated is crucial.

edit: I set it up again today and thus far, the Cintiq hasn't switched off or gone bright chartreuse. However, I have tried recalibrating it and tiny error messages keep popping up about not finding monitor 32, 1600, 1200 (and assorted other configurations/numbers). They pop up so frequently at times that the calibrator cancels itself because the message windows appear directly beneath the sensor. This just keeps getting better.