Thanks for reporting back. I suspect that the message was "unknown error has prevented...try restarting the PC..." or similar. This can be due to a back end or communication issue.
Just for clarification, OneCare will stop being sold in June of 2009. At some point after that, likely by the end of the year, new subscriptions will not be allowed. Renewals will be sold and allowed through the same period, so a subscription to OneCare that expires in June 2009, for example, can be renewed and will be fully supported through expiration. I don't expect support for OneCare to cease until the end of 2010 based on the information in the press release. We don't know what the new antimalware product will be like or if other utilities will be offered to replace functions in OneCare that won't exist in the new product, so if you are pleased with OneCare now, there's really no reason to not renew as long as renewals are accepted.
-steve
