Same problem on several computers since Mac OSX 10.7.4.
Glitches everywhere when I scroll on a layout ... very annoying
I would bet that this is happening while the screen is being viewed at 150% Zoom-level. Have seen it before, but only when Zoomed.
FileMaker has some issues at 150%, especially when trying to figure out positioning for items which were at 133 pixels (any ODD number) or sized to un-Even pixel counts. Trying to figure out what size to make 11pt Verdana at 150% or an object that is 37x143pxls is a challenge for the OS rendering. When scrolling, the effort to constantly refresh preogressively is just too much....
Switching to 100% zoom should clear it.
If you need to view at larger sizes, a layout redesign is really the only way to completely avoid this cropping up.
And it's not limited to 10.7; we've been seeing it appear at times since 10.5 on FM11.
This looks a little like the strange redraw issues that sometimes occur when scrolling in list view (Mac OS 10.6.8), unmagnified.
I have seen this a LOT. Way too much for my taste. Not just in Lion but in previous editions of the Mac OS too. I was not able to detect what causes it, but from reading this post, I will watch more closely to see if it only happens in list view and only at 150% magnification. Needless to say, I use them both a lot.
Same issue Here, mac latest FMP11v4, Lion 10.7.4
Problem everytime in list view if 75/150 percent
both in layout mode or in browse mode !
This is a bug !