Suddenly seeing Loading Folder Contents

Thanks, Yuri,

There must be a threshold for the number of items in the folder (or the time it takes to load them all) that I never passed until recently. If I reduce the number of items in the folder, should I expect the "Loading folder contents" notice to stop popping up?
...
(A few minutes later)
Never mind. I just did some serious housekeeping in the folder that was giving TLB trouble because of its size or number of items. I had the same folder on both of my computers, and the "Loading" notice was popping up on both of them. I have removed a lot of old garbage from the folders on both computers, and the popup has stopped on both computers. The sheer genius of this program continues to amaze me, even after all these years of using it.