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Well after some time on my own trying to get the Lexmark to work wirelessly I called tech support and finally got it to work on my macbook - here is the link for the updated driver. http://support.lexmark.com/index?page=content&actp=DD_LIST&productCode=LEXMARK_X4690&id=DR18567&os=MAC_OS_X_10.6&oslocale=en_US&segment=DOWNLOAD&userlocale=EN_US&locale=en
Depending on if that link ever loads you may have saved me a post. If it works I owe you a beer or the adult beverage of your choice.
 
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