A question: Given that nothing is different on my system, or my BOINC computing, why would my RAC go from over 15,000 to 8,000 over a period of two months? Any ideas?

After looking over your Daily points & RAC by Project charts, I see fewer points being earned overall and wide daily point swings on FightMalaria, POEM, Rosetta & SETI; No points earned in last 60 days on Docking, SIMAP & Seti Beta.

Based on what I can see here at BOINCstats, something has changed somewhere -- either the various projects are granting less credit per completed tasks**, you have more "pending" tasks (waiting to validate) or you are having a higher error/invalid rate on a daily basis.

**This could be possible at SETI due to the switchover to SETI V7 Multi-Beam which uses the "credit new" formula.

Thanks for the response. I'm down to these four projects: FightMalaria, POEM, Rosetta & SETI, and have discontinued the rest.

Could SETI changes have this much effect?

This is the second time my scores have changed like this, and it just makes me wonder it change occurs. And the change happens quickly, which makes me wonder if I changed something, but looking back, there's nothing changed.

Yes, I could see SETI dropping your RAC, if you read the comments in the SETI forum post I linked to earlier, you will see a lot of unhappy people.

Thank you.