I hopped into the Jetstream after not even thinking about it for quite a while, and I noticed that the taxi and landing lights don't seem to do anything at all. I can't remember, should they light up the ground? I know it isn't supposed to look like the NGX, but should it do something?

Yes, of course, everything's fine. 

I hopped into the Jetstream after not even thinking about it for quite a while, and I noticed that the taxi and landing lights don't seem to do anything at all. I can't remember, should they light up the ground? I know it isn't supposed to look like the NGX, but should it do something?

Mine light up the ground, personally I'm more confused about the strobes not working.

If you are useing REX, restore original FSX textures(original aircraft lights will be restored too) and after that in REX "options" under "light textures" ensure that "aircraft strobe" and "landing light" are not selected. Then, you can apply again REX textures.

 

Re-install or repair JS41 will put lights back to, but they will be overwritten next time you apply REX textures

If you are useing REX, restore original FSX textures(original aircraft lights will be restored too) and after that in REX "options" under "light textures" ensure that "aircraft strobe" and "landing light" are not selected. Then, you can apply again REX textures.

 

Re-install or repair JS41 will put lights back to, but they will be overwritten next time you apply REX textures

 

Now I feel just stupid, worked like a charm.

I had this with MD11, and found this is caused by REX lights  

I don't use REX, but do use Active Sky 2012 textures, so that sounds like the culprit. I tried restoring the original FSX textures from AS2012, but when I did that suddenly none of my aircraft had landing lights (except those with custom ones like the NGX) even the default a/c. Is there a way to get the default textures back other than re-installing FSX? I'd like to avoid that if I can.

I don't use REX, but do use Active Sky 2012 textures, so that sounds like the culprit. I tried restoring the original FSX textures from AS2012, but when I did that suddenly none of my aircraft had landing lights (except those with custom ones like the NGX) even the default a/c. Is there a way to get the default textures back other than re-installing FSX? I'd like to avoid that if I can.

 

No, only if you have made a backup. If not, before runing installer again - just make a backup of liveries, aircraft.cfg(to add liveries entries after, if installer overwritte cfg) and Navdata, so you don't need to install that again...Just copy/paste after re-install

Alright, I decided to try running the "repair" option from the FSX CD and that has solved it. I was able to re-install the AS 2012 textures, but de-select the landing and strobe lights and they all work now. Thanks!

Alright, I decided to try running the "repair" option from the FSX CD and that has solved it. I was able to re-install the AS 2012 textures, but de-select the landing and strobe lights and they all work now. Thanks!

 

 

You didn't have to repair whole FSX, just JS41(using JS41 installer) or/and other planes which had this problem.  Now, becouse you did that, you must install again SP1 and SP2 for FSX(or acceleration)and apply again UTX, GEX, REX etc... 

You didn't have to repair whole FSX, just JS41(using JS41 installer) or/and other planes which had this problem.  Now, becouse you did that, you must install again SP1 and SP2 for FSX(or acceleration)and apply again UTX, GEX, REX etc... 

 

All the planes were messed up, including the default aircraft. I tried just restoring the backup but that didn't solve it.