Windows 7: Aero Problem.HP-Compaq 6715s.Drivers or..?

Ok,I assume you all understood from the subject already,what is my problem,I dont have Aero at all..
So,I installed today Windows 7 on HP 6715s,Turion 2,1,!GB RAM,120GB HDD.Since I don't have original cd with drivers,U downloaded them from HP suport site,so they shouldn't be a problem.Everything went fine,Windows Activated and updated,but there is no Aero.
So what could be a problem.
I read that HP 6715s is perfectly capable to run Aero.Is it possible due to a memory lack?
Thanks

Give this a shot:

1. Right-click the desktop and select Personalize from the drop-down menu that appears.
2. Select Window Color and Appearance .
3. Select the Windows Aero theme, and then click Apply .

Hi, this works for me (i posted it on another thread)

Search 'aero' in the start menu and you should get something like 'check for/fix problems with aero', with mine it simply checks through a few things then says everything is fine, the screen flashes and there is aero!

Hope this trick works for you.

Thanks on the help,but that was first I even tried before even asked for help.

I tried that but didn't work for me.I was getting message that my version of driver tralala,and that I have to enable it(adapter) through Display Manager,but I couldn't because every option there was grey.
So I had to download video driver again,and what is funny thing,second time everything works fine.
So what could possibly cause that?Same driver,sane integrated video card,same Windows 7 version?
There is just one thing I can think about.I installed a bunch of things,update and drivers first time without a restart,and second time,I restarted it every time it asked me to.
It doesn't sound possible at all,but there just isn't any other reason I can think about,