Every time I try to go online, I get the message "Server not found: Firefox can't find the server at en.us.acer.yahoo.com." My netbook, a refurbished Acer Aspire AOA 110-1831, arrived on Friday, and I've been able to get on line every day until today, although on the first try I would usually get the error message, then be able to open Firefox on the second try. The Acer is plugged into the same router as my desktop. I would appreciate any help that you can give me. Harriett Wright