The hibernation issue was first noted soon after the Ermine beta came out. I'm sure enTourage knows about it. Here is one of the threads from the Ermine section of the enTourage forum:
http://www.entourageedge.com/forums/...ht=hibernation. I don't know if there's anything helpful in there, but the problem is pretty well documented, so let's hope they can and will fix it!