by Jerm » Thu Dec 22, 2011 2:43 pm
Does it only happen the first time you launch?
If yes, then perhaps you have too many plug-ins (or files in your plug-ins path).
In the previous version Metro would scan plug-ins on a different thread so the whole system would slow down but you could use Metro as long as you didn't do anything that involved a plug-in. We found this behavior more annoying than just waiting for all the plug-ins to scan.