Problems with FMC

[Guest corrie]

After I installed FSX to the same PC as FS2004 , in my PMDG 737 FMC if I choose a runway for arrival it does not line up with the runwayin the sim .Any ideas plse

[downscc 1,327]

This problem came up recently with airac cycle 0608. This may not be your problem, but just wanted to mention it as a possiblity. The fix is to either get current airac data (0611) from navigraph or download 0610 which is still free and relatively current.