Howdy, I picked up a HP 8903B that has some bad led segments. Looking around the interweb, I saw it's a fairly common problem yet I couldn't find any forums that posted a repair solution. I am hoping it just needs a good cleaning, been surprised how many times that has fixed bugs in electronics before. Its in the mail, I haven't received it yet but I am trying to research it so I can dive in and get her fixed. Thanks in advance!