Hi David,
I also see the flicker that you're talking about, so it's not just a video card or memory issue.
Here are the details for what I'm seeing:
1. The long-time bar must be first on the page (per your observation).
2. It only happens for the first 4-6 beats of the bar - afterward it corrects itself.
3. It doesn't always happen (eg. some long-time bars don't flicker).
4. The ones that it does happen for are measures 9, 13, 25, 29, 41, and 45 (I tested this by resizing the Composer window to force long-time bars to "just fit")
5. The "flicker" is actually a flash-back to the previous page.
6. It also happens (and for longer duration) in Page view (which I find strange).
I'm writing this up, though given the relative infrequency of such music, I'm not sure where it will fall in the scheme of things.
Thanks for the very cool file that illustrates the problem
ttfn,
Sherry
Task 2553