It is good that this issue is getting some attention - I thought I was seeing things at first....
Let me emphasize the following:
This is a subtle issue. I consider myself an advanced power-user, and I know when an interface feels different from that of one I am used to.
Please do not confuse this issue with a simple "hardware not capable" problem.
I have been using Vista x64 for about a year now, and I upgraded to Windows 7 x64 last night.
I had tried out my Windows 7 when using Vista, in a Virtual Machine, just to see if I would like Windows 7, and I thought the "micro-lag" issue was just because I was running in a Virtual Machine.
When I formatted my system drive and installed Windows 7 last night, and started to use it, I noticed the "micro-lag" in the window animations immediately.Vista had no such lag.
My system specs:
ASUS P5Q Pro
Intel Q6600 @ 3.6ghz
8GB RAM
ATI 4850
Latest drivers, etc.
**Again, Vista x64 was smooth and perfect. Windows 7 has "micro-lag" in the window animations.This may not be an actual "lag." It may be simply a graphical draw sequence issue.**Other than that, I really enjoy using 7. A lot of the tiny problems with Vista (which I enjoyed using too) have been fixed. To me, this lag issue seems like an easy fix.
After examining the issue further, it only occurs when opening a window or closing a window (opening a folder on your desktop, for example). It does not occur when minimizing or maximizing.
It is not lag.
It looks like they wanted the window animation to "pop." It basically opens, and right before it is completely open, the animation sequence changes its time-step.
Not a bug, not a glitch, not lag. They clearly meant to do it.