I downloaded it last night and it ran laggy as hell until I rebooted. After that it has been fine. The new transitions are amazing. If a reboot doesn't help it might help to wipe your cache and try again.
there is a sticky for adw in the Applications forum. I posted this same problem in there. Please post in there so we know that others are having the same issue.
i uninstalled it and reinstalled, and everything seems to be fine. my app drawer is opening with no problems. and no force closes since i reinstalled it.