OK, so it's not just me. I installed 17.04 over Win10 on my desktop a couple weeks ago—my first time making a serious go of Linux on the desktop since whenever

OK, so it's not just me. I installed 17.04 over Win10 on my desktop a couple weeks ago—my first time making a serious go of Linux on the desktop since whenever Ubuntu wasted a ton of my time with their half-baked PulseAudio "upgrade", which was a long time ago at this point—and started with KDE (I know from some dabbling that I hate Unity), but was hitting application crashes and long busy-cursor issues at a rate of several an hour, across many K-series applications—including settings, and the file manager. I constantly had little "something crashed" icons in the tray (which, by the way, failed to be interactive when clicked, so they just sat there). After a few days of that I switched to Gnome (which on an SSD and a four-core desktop class processor with a pile of RAM is now tolerably responsive) and that all stopped. Still no cure for awful tearing every time I scroll in FireFox :-/