Help! Aero terminates itself!

Hello!

I have following problem: I've got decent hardware (gf 8600gt) to run aero, but each time I log in it executes normally and just after a short while the screen flashes 3 times and then the aero is gone, dwm.exe terminates for good! i've tried using standard windows drivers, forceware for win7 and forceware for vista, nothing helps.

i've been trying to use command line to reset the dwm, but each time it just terminated after one second.

i have searched almost everywhere and still got no clue about this.

Well, I've run the WEI test alredy and got 4,5. I loose the interface EVERY single time the system is supposed to execute it, every bootup, just got to wait a second.
I've earlier checked both startup (only graphic drivers for 7 and security) and services compatibility and to get rid of possible unnecessary things, and everything seems to be fine, since I've only installed the most basic things.
Now I'll try what Lordbob suggested...

Make sure your graphics driver is up to date.

i had this same issue... i had to rerun the WEI a few times after initial RC install, it kept wanting to install something, on a few boots, not the same thing, it was installing new things like usbroot hub stuff and mass storage etc, but i never could explain why THAT beyond changing any kind of hardware, would it want or need to rerun the WEI. I came back from running it the first time, and i think thats when (afterwards) windows installed found peripheal hardware,( besides sound nic camera and graphics -all were already installed). I noticed aero gone (which to add after initial install and desktop logon, i didnt have aero by default, wasnt the case in 7000) again, so i ran the WEI again.

Knock on wood, i havent had it do anything like that again. But there does seem to be somekind of overall issue with it.

this dealt with a mobility x1600 by the way with 7 assigned drivers.