upgraded to this from 7.2.33 and the flashing screensaver still persists, the same as 7.2.39, I'm going back to 7.2.33 again until you get this fixed. :(

OK, I had a chat with the BOINC developers about this. There have been no changes in the behaviour or the code, or the libraries of the screen saver, between versions 7.1.17 and 7.2.39.

Flickering of the screen saver can point towards problems with the driver. Does it only do it with BOINC, or also other (OpenGL) screen savers? Have you tried to renew/reload your driver?

Both of the projects you run are done through World Community Grid, aren't they? Have WCG released a new screen saver/graphics application lately? What, if anything, do they say about it on their own forums?

@filchef:
Could you please state what operating system and brand and model videocard you use? Also on what project(s) you see this behaviour, and which science application(s) run at that time. Which drivers?

@C.A. Chicoine:
Could you please state what brand and model videocard you use? Also on what project(s) you see this behaviour, and which science application(s) run at that time. Which drivers?

With thanks.