Yes. iCloud on the web is correct although the latest stuff I added to my MacBook is not showing up because it won't sync.
In System Preferences iCloud is selected and they are turned on on both machines as always.
There are no other calendars linked to iCal. I just have a Home, Work, and Birthday and US Holidays all linked in.
I did try something on my MacBook that seemed to work. I went into System Preferences and turned off Calendars and Reminders in the iCloud setting. That prompted a message that all of the iCloud iCal data would be removed from the computer. I made sure the web version was accurate before I did this. Then I shut down my computer and restarted. When I restarted I went back into System Preferences and turned on Calendars and Reminders and now it seems to be working.
I'm about to try the same thing on my iMac.
If this works both times, my question then would be what would cause both my iMac and MacBook to disconnect as it seems from iCloud when I hadn't changed anything at all.
I have the same problem now.
I can't update my mail via Mail in Mountain Lion.
When I try to change iCloud settings via 'Preferences - iCloud' then I can't change it because of my password is not verified. I mean that I type my password and system hanging with no answer.
I guess that my iCloud applications aren't updade mail beacuse password verification problem is present.
Is it temporary problem?
I just leaves iCloud via 'Preferences - iCloud - EXIT' and now I can't enter iCloud again.
The same reason: my password unable to verify, system hanging for a minutes with no answer at all.
I'm sure it is a trouble with the password verification.
Access to the iCloud via Web is OK.
I hope that trouble would be fixed soon?