Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Apple Starts Seeding OSX 10.7.2 And Also Sends Early iCloud Welcome Emails –
Apple has today started seeding OSX 10.7.2. This is not available to all developers yet. 10.7.2 is said to include a Lion Recovery Update addresses an issue with Find My Mac when using a firmware password. Images Below
As you can see from the image there is two hyperlinks. The link to the instructions is not yet available. Apple are certanly making the final alterations to iCloud which is going to launch along side IOS 5.