I am new to the B737 and am having an issue with the Innsbruck tutorial. When established on the RW26 localiser, with VOR and APP selected I am unable to break off the approach for RW 08. The heading and altitude buttons on the autopilot have no effect, and I can only stop the approach by switching off the autopilot and flying manually. I believe I am following the instructions correctly. When in LNAV VNAV mode in flight I am able to make heading and level changes, but once I have established on the ILS the aircraft autopilot functions seem to be locked. Additionally I programmed a hold at RTT into the FMC, but the aircraft ignored that also. It may be my inexperience with the aircraft, but I have used other aircraft FMC systems before without any problems.
Apart from these early issues I have to say that I am extremely impressed with the overall quality of the product and the realism of the cockpit simulation.