I have removed it manually also many times over but it does not work for me. I came from a MobileMe migration and I think it may have something to do with it. I am downright frustrated to not know why there are basically 3 icons with almost the same functions in Preferences referring to logging into iCloud. I logged in and deleted all three in every possible combination to try to get my HD iCal and mail to sych. with iCloud, but to no result.
It seems Apple does not care to respond to this problem as I have not seem their official reply or fix to the matter. I spent many many unnecessary hours trying to resolve this issue, no fault of our own I am sure. It has to simply do with the server rejecting our access.
My issue actually began when all was initially working fine, except I noticed my iPad wasn't logging into iCloud, it kept asking for an iCloud password even though the correct one was entered. So then I went ahead and changed the iCloud password thinking that should be a work around, just needing to update all my devices with the new password. What a Fricken Mistake!!!! Since then my iMac and MacMini disconnected from the iCloud server. I haven't checked all my Apple stuffs. Yet I can access iCloud via any web browser! Apple is just winging it as they're winging the new iPad leaving more trails of mistakes and less fixes. The three redundant icons unfixed poses as an obvious sign of a potentially bad future.
With the volume of customers increasing they still decide to not provide customer support at night as the days are all busy with very long wait times that are expensive as I pay by the fricken minute. Anyways, enough whinning, hope someone can help me with a fix. I tried already to verify, fix/repair, and reset my Keychains, so that is not the issue. I even carefully erased all the iCloud related ones I could find except the certificates. Please help with a ReAl and PrOvEn fix, thanks in advance!