>>Basically, this is what is happening. Dockable windows like the Project Manager, Command, Data Session and Properties page exhibit this jittery lagging movement when it is set to Dockable, AND Aero Effects is turned on. FWIW, our machines here have 4Gb of RAM and have Core 2 and up processors.
>>Nobody else got this behavior?
It's nothing to do with your machine, just one of those VFP peculiarities that never will be fixed. Sort of like the irritating Find dialog focus issues. ;-) It doesn't happen unless you're dragging things around so if it really annoys you, consider a second monitor so you can keep the culprit windows static on one of the screens. Alternatively you can drag projects to the toolbar and turn off dockable for the rest.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1