"Your Apple ID or password was incorrect," trying to create iCloud account
I just upgraded to Yosemite 10.10.2 and want to create an iCloud drive in System Preferances. I used my Apple ID which is the same one I used to login in here, in the iTunes store, the App store, etc, and get "Your Apple ID or password was incorrect.gen
This is a 1st gen unibody MBP (late 2008) 15 inch 10.10.2 8 gigs ram.
Thanks in advance for any help rendered.