Sorry for this miss worded info. It was early. I was getting the MS FSX has encountered and error and needs to close box. I had put in .234 last night and flew for about 2 hours, (continuation of a previous flight with .231), got the error around the 2 hour mark. Re booted the machine hoping it was just that. Got it again after picking up on the latest fsuipc saved flight. settings for those are 600 seconds x 10. Shut down for the night. Checked the board this morning and saw 235 so gave it a go. Same error aroud the same place according to miles to go. Put 4.231 back in and picked up on the same FSUIPC saved flight and it was fine. I have the 3 boxes of wind smoothing checked on the left with your default #'s. Have been using the same settings since 4.219 which had the SP1 manifests added.