Hi folks, I picked up this unit years ago and did use it for a while with no trouble, even have the remote. A while back it just froze up and hasn't functioned since. Is there any sort of a reset button on these things or any simple trouble shooting I might do and is it even worth pursuing? Mashing the power button (which is sort of purple, not red nor blue) has no effect on anything, the display seems to be some sort of a jumble. No response from any of the other control buttons either. See pics.