I checked for updates, iQUE recommended I upgrade to version 4. This is new, my V3 has never recommended V4 before. I've purposely avoided upgrading manually as well to V4 simply because of all the nightmare forum posts about it.
Amazingly, I had no issues whatsoever installing V4. It even retained my profiles. So far, a week in with many sleep cycles and some updates and reboots, no issues with iQUE. This is a welcome change from past experiences with V3 and earlier. The list of annoying bugs is more words than this forum allows.
Thank you Corsair for addressing this software. iQUE is sometimes a necessary evil and is a cumulative dis-service to all your products if not working flawlessly.