I was just testing the new screen saver/graphics on Pirates, but found that I never even got them. So I continued testing all other applications I have that do show graphics, like Einstein 4.26 beta app with BOINC 6 compliant graphics, Seti@Home 5.27 (B5), CPDN Beta (B5).
I found that with Seti and CPDN, the Show graphics button stays grayed out.
When I force run Einstein, it'll show the graphics without a problem.
So then I checked my setup, it is the service install after all.
Went to services.msc and made sure I had the local system account option checked, complete with interaction to the desktop. Set them again, stopped the BOINC service, applied, started the service, opened BM and still grayed out show graphics button on all tasks, but for on the Einstein task.
I then tested it with local system account off, set the service to run under my own name only. Same effect in BOINC manager.
6.1.7 worked fine on this, so something in between changed and broke the BOINC 5 compliant graphics for me.
Einstein's graphics can always be called upon, even when the task isn't running. The Show graphics button doesn't gray out when you select the task in the Tasks tab.
It will disable itself after 5 seconds of running, though. Is that a check in the application to see if the computation thread is running?