I have 3 computers running various Boinc projects, including 2 that run climateprediction. Those 2 computers lose a lot of time every day on the system clock (5-10 minutes per hour). The one computer that isn't running the climateprediction Boinc project (but is running two other Boinc projects) doesn't have this problem. I've changed the motherboard battery on one of the computers with the problem, but that made no difference. The other computer with the problem is less than a year old. All computers exceed the minimum hardware requirements to run the climateprediction project. I'm running Boinc version 4.19. I do not use any screen saver, including Boinc, nor routinely show the project graphics on any of the computers.

---