My FSX vista PMDG MD-11 freezes after I put anything in the FMC. Thanks,RubenSchuckit

One of the bug fixes in the upcoming update resolves an issue when a stored flightplan causes a lockup. This could be your problem. How is works is when you enter KSLC/KATL to put into the ORIG/DEST field the MD11 looks at all your stored flight plans in all the locations per the manual for a match, but if it doesn't like one or more of the flightplans it locks up.The interim solution is to archive or delete all your saved flight plans, or go through them to see which one(s) it doesn't like and take it out of the situation. Since the fix should be out soon (days... weeks?) I'd suggest saving time and archiving all stored flight plans until then.Hope this helps.

Dan, I can't thank you enough. Fixed! :D