my 2nd hand 2009 dual seems to have a side panel from a 2008 model, at least the ram upgrade pictograms don't match the internals of this machine. What ive just discovered is that the panel pops off without unlocking the lever on the back (which I assume is not supposed to happen). Would anyone mind posting a photo of the inside of the panel from a 2009 so i can see the differences? My suspicion is that it's missing some structure that something on the 2009 latches onto... Thanks.