Hi Everybody,I've bought and installed the last version of the 737-800 (1.1 full) but FS9 freezes after a few flights. The first time I run the simulator it goes perfectly, the second time too but then each time I select and confirm any of the PMDG 737 from the aircraft selection menu (either in a new situation or from the default situation) FS Freeze and I need to "CTRL+ALT+CANC"I've tried to uninstall both the add-ons and re-install them but it still freezes, then I followed the instructions on PMDG site (deleting state.cfg, fs9.cfg, reinstalling FS) but there's no way to get it working.Any idea?Thanks in advance.Lorenzo

I get the same sometimes. Not only with PMDG 737 but with PSS Airbus and other complex aircrafts too.The problem relates on my system to the lack of memory. I only got 512MB and when PMDG 737 or PSS Airbus it will useup most of the memory.Second problem i experiencing, is when my FDC is loaded. It makes my FS unstable.Cheers

Hi all,I'm also same problem once after complete the latest update, i try to remove 737-600/700 and reinstall back 737-600/700 together with 737-800/900 version without run the latest service update. run smoothly, not sure why the service update cause that problem.

Hi Lorenzo. Have you installed Direct X 9.0C?I

Hi,I've solved this problem by running the PMDG 737 with no others applications active. This is very strange as I have 512MB DDR Ultra 400 of RAM and I've never had similar problems with others "heavy" add-ons. (Usually I can run the PSS Airbus on VATSIM with Outlook, MP3 Player and Photoshop in background)...Thank you very much.GreetingsLorenzo