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Thunderbird not able to retrieve email
Ever since installing NIS 2012 I occasionally have been experiencing in the morning when returning to my computer after the night, that Thunderbird no longer can retirve my email. In the past, All other internet service continued to work. Rebooting always resolved this problem, meaning that it was something on my computer causing this malfunction. The cuplrit IS NIS, and turning off Email Antivirus Scan resolved this problem without having to reboot.
To get a fuller description and explanation, go to http://www.tech-evangelist.com/2008/10/17/nav-thunderbird/comment-page-1/#comment-23772 and read what other people were encountering, some of the suggested reasons, and my "dissertation" (under 'Vincent').