I downloaded Thunderbird 1.6.0 after much delays and restarts. Tried to install it
But got a 'pop-up' from 7-ZIP "Unspecified error." I don't use 7-ZIP but it is on my machine. Tried to delete it but was denied as "it was in use." I nibbled at the files, deleting each segment one by one. Got it down to a .dll and finally got that deleted. But would you believe that it, although "gone" acts like it is still there and is still putting out that pop-up and blocking me from installing my email program. What the Heck?
Bob A