Not sure what a mx 140 is.
Do you mean a ''Dell XPS M140'' notebook computer?
I assume you are running a fully updated (Windows Update) version of Windows XP? Correct?
It cannot locate my LAN on the laptop....
Is this a home network? What hardware do you have (wireless-g router, cable modem, DSL modem, combination modem/router, etc)? Model numbers help.
I just unpacked my mx 140 - wireless b/g - 1.86 P/M - 1gig - 80 g hard d. Broadcom 10/100 ethernet - I will use this extensively on the road where ethernet cables are still required, but when I unplug my ethernet cable ( working fine ) from my desktop it cannot locate my LAN on the laptop .. I get constant messages saying windows cannot locate my IP - I just plugged my desktop in when I got it last month and had no problems - but this is now 6 hours of frustration and I am totally stumped.. FYI - my wireless works fine.. I would appreciate any assistance.