I received my Gateway 21' monitor last Tuesday its serial number says it was produced in August 2005.  I wasn't expecting the referb to be that old but if it works great.  Of course its fancy stand was broken so it can't be raised or lowered.  I tried calling Costco's tech support three times but never got to talk to any one, they would call back the next day when i am at work.  Finally I emailed them and a replacement stand is on the way.  Ironically this monitor does not have the odd squeal the "newer" (manufactured in May of 2006) one exhibits from time to time.