Hi, I use nexus for months and these days he begin to freeze and only start to behave normally when I change one config(may be align to the center). This occur everytime when I enter in windows 8 cp metro style start but the program was fully functional a week ago with the same system!

If Nexus was behaving normally before but now it isn't, then it must be because of some change you made to your system. Perhaps an update to your AV/Security software?

Problem is that Windows 8 is still in beta, which means MS can change whatever it wants at any time. As such, it is not worth investing a lot of resources fixing a problem that might not even be there in the next beta (and this assuming this might be a Windows 8 compatibility problem, which I'm pretty sure it's not).

I would really like to help you more, but, at this point, it is really up to you to try and figure out what is causing/has caused this issue, sorry...

Thanks! I'll try to clean the nexus configuration and try again

Ah, one question: I imagine what you are saying is that Nexus is frozen when you return from the Metro UI, right? Have you tried waiting a little bit to see if Nexus unfreezes itself?

Nexus stuck the open windows is still functional but nothing changes(in minutes at least). I changed the configuration of auto hide back to slide(the one I was using previously) instead of fade out and now appears that nexus is back to normal! when I go to metro UI nexus slide in even when I don't touch the border(I can only see nexus appearing on the transition to metro UI and back to desktop).