Hello PMDGThis will be mt first time posting in the forum for help as most times the solution has been found elsewhere. However I thought I would add to the post to help generate possible solutions.So i essentially have the same problem as other users in that both roll and pitch are lock up at some point in the flight.I took off from SLC last night, having tested all the controls before hand and all worked well. As I rotated and pitched the nose up, at 12 degrees it would no longer pitch anymore. I still had the authority of the ailerons, but had to engage the autopilot in order to control the aircraft. I started checking FSUIPC settings and the internal control settings, I adjusted the LSAS sensitivity all off which had no effect. Once the aircraft got into cruise I disconnected the autopilot and now had no pitch and yaw control. I engaged the autopilot and tried to research possible solutions on my other computer. I then hear the altitude warning, and at first glance all looks well, however changing to the 2D panel i realize that the aircraft is climbing and going off course. From the virtual cockpit the screens had frozen. I once again disconnected the autopilot and found my self entering in a spiraling dive as i had no control over roll or pitch!After losing 20,000ft I used the slew key and regained the altitude, once i finished slewing I had an FSX crash, the Cause PMDGMD11.DLL.I'm using Autosave so i restart FSX and find myself cruising along over the desert at F380. I disengage the autopilot and to my suprise I have both ROLL and PITCH control. I engaged the autopilot and every few minutes I checked the controls, after 10-15 the controls would once again lock up. With the autopilot flying the aircraft I can disengage it by changing moving my yoke which gets the autopilot to disconnect, but then no roll control.Disengaging LSAS makes no difference both pitch and roll still remain locked. Also i can confirm what others say about the control of pitch and roll returning 100ft AGL.This is not a once off and has happened many times recently, the problem being it started having not made any changes to the sim, or not that I'm aware of anyway.I would also add I have the FS9 MD-11 and have no problems with it regardless if it's a different sim I think that must have some bearing on the possible problem.I have a Saitek Pro flight yoke and rudder pedals that work fine with all my other aircraft. I'm running The Latest version of active sky evolution, although it is a beta build(614).I have a registered FSUIPC version 4.60a.Any Ideas would be great.Stephen Whittall