My UP board is basically unusable recently because anything I do with any browser (firefox, chrome, opera) causes it to crash and reboot. It started about 2 months ago and has progressively got worse. It started with Ubuntu 16, I upgraded to 17 and now 18.04 and none of the upgrades have changed anything. It is running kernel 4.15.0-52-generic. I couldn't even write this post using the UP because it would crash and reboot. Any ideas? Anyone else having similar problems?