Problems with 3d lights redux in fsx

[Falcon]

Yesterday I purchased schockwave 3d lights redux and installed in my FSX. On all the defualt a/c that it automaticaly installed, I can't turn on the landing lights or taxi lights. If I use the switches the taxi light switch will move to on but no light. The landing light however flips back to off after I click it on. Using L key makes no difference although once in a while if I hold the L key on then one of those lights will momentarily flash.
Any Ideas out there to help? I've been trying to find out some info, but so far nothing.
Thanks