Due to a problem I was getting with FS2Crew, that was stated as being caused by not having SP1c (which I had installed) I checked my 737NGX aircraft cfg files.All except my 700 non WL version, show build 3219 while the 700 shows 3118. It was the 700 I was using when the FS2Crew problem arose.When I ran the installer, everything seemed fine and all seemed to work ok.Should I run SP1c for the 6700 again or is there something else I need to do to correct this?Iain Smith

First run the 8900 SP1c installer AS ADMINISTRATOR, after this do the same for 6700 SP1c installer. Both installer should be able to update any previous versions, according to what Robert said.

Uninstall the whole 737NGX then install the 800/900 first, then the 600/700, then SP1c. I believe you don't have to install SP1, then SP1b first.