Booaaaa, sorry to hear about your issue. The recommended course would be to reinstall your firmware with the latest version if you are saying that the puremovie option is not coming up or selectable in the menu. If it is not the software potentially having become corrupted, then the other possibility is that your dynamic black arm which is mechanical may have stopped functioning properly and needs to be repaired or replaced. These italian beauties are true stallions of performance but like their automotive counterparts some of the units can be a little moody and need some love and attention from time to time. The good news is that Sim2 stands behind their machines and will make sure that your unit is right, so don't sweat it although I know from ownership experience with many many Sim2 units dating back to 1998 that it can be agonizing to not have your unit tip top until the service folks work their magic.
I am also BTW hearing from several parties who have eyes on and compared A/B that the Sim2 Lumis units are crushing the new VW1000 4k from Sony in head to head comparisons in quite a few areas including ANSI and MTF. Folks who thought the Sony would be an improvement are walking away mightily disappointed. Apparently, like cameras, pixel count alone is not everything by a long shot. You still have lens quality, sensor quality, etc etc. Also many reports are that SXRD is not nearly as durable as the DLP tech. I have heard of a number of issues with the VW1000 right out of the box as well as SXRD units that have been in the field for some time. Sim2 in my mind is still the optimal platform for HT in the here and now and has bottom line performance more than worthy of the infrequent or rare issues that do come up from time to time. Fanboy, yes, but I've owned a large number of the Sony's and JVC's as well and always come back to Sim2.