This model is not near so prone to developing this problem in the same way as are the "D" followed by two digit models, so the problem you experience may not necessarily be cleared up by cleaning the dew sensor, however the info has been sent anyway. It should also be pointed out to anyone else that may be reading this that the DX models are much more difficult to work on compared to the aforementioned "D" versions, so the undermentioned is particularly important when dew sensor disabling is applying to any of the DX range. -------------------------------------------------------------------------------- AN IMPORTANT POINT CONCERNING THE MODIFICATION. The instructions given are really aimed at technically minded people of a "practical" nature who are acquaint at working on smaller electro-mechanical devices of a precision nature, or who have a flair for this sort of thing, and so in the interests of not making the situation any worse I would strongly advise anyone who does not really come into that category NOT to attempt this work, as it involves separating the case and the unscrewing the main circuit board to gain access to the board below it, this requiring the disconnection of ribbon cables etc, it is also necessary to carry out the precision soldering of two "very" narrowly spaced PCB pins, so the possession of a fine tipped soldering iron is also absolutely essential! So taking the above into consideration the qualification mentioned is really a MUST!! It should be emphasised that there are NO shortcuts into getting over this problem other than what's been aforementioned, and even if the memory reset does affect a cure it can only be adopted as a stop gap measure as the CPU could lock up again at some point in time, and unfortunately in many instances does!!