Just finished building my HTPC a week ago. I initially had 9.11 installed and Aeon worked perfectly.
I then upgraded to the latest nightly build for windows- I'm running windows 7 64bit on the ECS md120 which is comparable to the Asrock system but the case allows for standard 3.5 hard drives. Ion chipset w/ dual core atom 330.
Anyway Aeon 65 is very laggy on it- it took me a while to read that there's a different version of Aeon (Aeon 65) for the svn builds. Also it took me a few min to figure out that I needed to load the fonts in the fonts directory under windows- when I was running 9.11. Is that the same for all skins that use custom fonts- only because Aeon uses 40+ fonts and I wanted to uninstall them to see if the new version of Aeon 65 comes with them since the skins folder got moved to the addons directory and I figured they might have changed it.
Just found this:
Before downloading the rest of the Aeon skin, you will need to download the fonts from the aeonproject.com website (direct link). Download the fonts and put them in a temporary location for now. After you have downloaded the rest of the skin files as described below, extract the fonts and place them in a "fonts" subfolder in the same root folder as the rest of your Aeon skin.
So I guess I shouldn't have actually installed the fonts in my windows font folder under control panel.
Anyway...
I only have 2gb of ram but the other skins I've tested on the nightly build work fine, although I really like the look of Aeon- especially the wall feature which no other skin has apparently.
Also one more question which I guess I should make a new topic for but updating XBMC on windows works how exactly? Do I just install the latest nightly build over the current one minus the directx and c++ framework. Thats what I did when I installed the latest build over my 9.11 installation but I wonder if there is a bunch of extra directories- like the skins folder which is no longer used.