I had this problem last week and Nick Swayne gave me some excellent advice. LEGO will replace your faulty NXT at no cost because the display issue is a known problem. You may have a problem b/c you attempted to repair the unit but you can always ask. Below is the number I telephoned. The representative told me to write a brief note explaining that the display was intermittent and include my return shipping address. He gave me the address below to ship my NXT. I asked if any kind of RMA (return merchandize authorization) number was required and he said no--just include the note about the display and the problems I've encountered. For assistance in English: Customer Service: 1-800-838-9647 8am to 10pm EST Monday - Friday and 10am to 6pm EST Saturday and Sunday. LEGO Education Technical Support 1003 East Adams Street Pittsburgh, Kansas 66762 Charlie Aldridge ----- Original Message ----- From: "Edie Huffman" <[log in to unmask]> To: <[log in to unmask]> Sent: Monday, October 17, 2011 7:59 PM Subject: [VADCFLL-L] robot screen > We are having a lot of problems with our robot screen. My husband keeps > soldering it and looked at the youtube fixes, but it keeps breaking. How > do > we get a new robot? > > -- To UNSUBSCRIBE or CHANGE your settings, please visit > https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or leave > the list". > > -- VADCFLL administrative announcements are sent via > VADCFLL-ANNOUNCEMENTS-L. Visit > https://listserv.jmu.edu/archives/vadcfll-ANNOUNCEMENTS-l.html to > subscribe. -- To UNSUBSCRIBE or CHANGE your settings, please visit https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or leave the list". -- VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. Visit https://listserv.jmu.edu/archives/vadcfll-ANNOUNCEMENTS-l.html to subscribe.