I did a fresh install of Windows 7 Ulimate 64-bit on a formatted drive on a refurbed Lenovo PC, applied all 102 (!) windows updates, windows seems to be working fine. No quirks installing, no apps, no junkware, just straight, legal, Win7 Ultimate right from an unopened 2009 Microsoft box.

Ok, breathe sigh -- Install Live Mesh (no messenger, no mail, no writer, no photo, none of the rest of the Windows Live freeware). Set up my shares, let it run overnight.

watch MOE.exe in the Task-Manager perf pane to make sure it's all settled down.

reboot.

Ok, check that MOE is running and files are getting updated properly from other machines in the mesh. Great.

HOWEVER -- when I try to launch Windows Live Mesh app from the Start jewel, I get a brief hourglass, then nothing. Reboot. Same story.

result -- the shares I already posted seem to be synching properly, but I can't run the app, so I can't add and delete shares. The background process MOE seems to run, but I can't get the app going.

btw, the reason I did this fresh install is I had exactly the same experience running Vista, so I wiped the machine hoping it would solve this nasty problem. Imagine my surprise!

Will be grateful for clues, advice, etc, please & thanks!