LNAV Not Staying Armed/Engaging

[Guest JAG7E7]

Hiya,Alright, I've been having a problem with my PMDG 747 since I installed it after re-formatting my computer.When I'm in HDG SEL mode, and I hit LNAV, LNAV flashes armed (white color) on the display, underneath HDG SEL (in green) but, LNAV does not remain armed, it just flashes for maybe a second, nor does it engage. I've tested it out, and even when I was within 2.5nm of my course and on an intercept heading, it still didn't work.Any help would be greatly appreciated :)Cheers,KristianPS I'm running it on FS9

[downscc 1,327]

Most likely thing is to go the the LEGS page, make sure the top fix is the one you want to fly to, double click the LSB next to it and EXEC... this will reset the FMC to fly from where you are to where you want to go.

[Guest JAG7E7]

Alright, I'll set up a quick flight and see how that works out.Thanks