Is there someting special I need to do to be able to turn the ASA dial above 50 ASA? It appears to be frozen and won't turn beyod 50. The mode is set to "M" for Manual. I sold this to an Ebay buyer and he is actually having the problem. Since I sent the operations manual to him as well, I have nothing to consult and I recall that the dials has to be set to certain settings.