Thanks for the help guys!

Heres what I tried today.

Loaded up the Captain Sim 757 defualt flights for Engines Running at KSEA and flew down to KPDX. Tuned in the ILS and it all worked fine.

So I thought it must be something to do with the default flight I have set, which is for everything to be cold and dark.

Then I logged back on here and discovered you blokes had already discussed making sure the avionics switche is set to on.

Well, I opned up my aircraft.cfg and made the electrical adjustmented that was metioned above, and I set a shortcut for the avionics master switch as well.

Then I flew KORD (FSDreamTeam) to KJFJ (FSDreamTeam). All seemed to go well. I set the ILS, and as I approached the field I got the DOTS displayed on the ADI (which was never happening before) but the magenta intercept bar never appeared, either for the localizer or the glideslope.

I tested switching the master avionics on/off with my shortcut CTRL/SHT/A and sure enough, with the avionics OFF, the DOTS disappear (but nothing else goes off, no radios or anything). When I turned the avionics back on, it appeared again, but still no magenta BAR.

More testing is needed I think.

Thanks for you help tho guys, much appreciated.