Just a work around until LMI works directly with Win8...
I'm using Windows Remote Desktop on a PC on the same network as the Windows 8 PC. Here's how:
My laptop with Windows 8 Release Preview is on a local area network and I am able to access it with Windows Remote Desktop from a PC with Vista on the same network. So I then use my Asus Transformer with Android 4.0 running LMI Ignition to access the Vista PC and use it to access my Win8 laptop.
Kind of funky but it's working so far. It's helpful to know some of the special key combinations you can use in Windows Remote Desktop to move around such as switching from Win8 desktop back to Metro (ALT+Home is the same as the Windows key). Here's a link to some of the special Windows Remote Desktop Shortcut Keys:
Like my wife says, "You have a knack for overlooking the obvious"...
The ALT+Home combo isn't necessary in LMI since a Windows key equivalent is provided. It's kinda weird though since when I'm on the Vista PC that is Remote Desktop accessing the Win8 PC, I have to use the special key combos since the Windows key on the Vista PC doesn't pass through to the Win8 PC. However, LMI must be by passing the Vista PC and sending the Windows key code directly to the Win8 PC.
All this takes some getting used to when you're using 3 computers with an intermediary PC to access another PC.
I was able to get everything working by following the above advice and putting the LogmeIn process into Windows 7 compatability mode plus Administrator rights. I also had to do the same to the app that runs in the tray by right-clicking on the launch icon in the start menu, then rebooting.
Everything seems to work well now. Hope they address the inconsistancies soon since it appears this problem has been going on since beta.