This is a little OT Logan, but you don't need to move your P4 runtime anywhere to use it in P5. P5 supports multiple runtimes. Fire up P5, open any library, go to the very top level and "add new runtime", navigate to your P4's runtime and add it. Everything (fingers crossed!) should work OK. Just a suggestion for after you've got your lighting working in P4:-) (BTW - if you do decide to try P5, please ensure you are up-to-date on the Service Releases). If you've not used P5 much you'll have a bit of a learning curve to go through, (and you'll probably need more RAM and a faster PC!), but IMHO P5 is well worth experimenting with. (Plus you can use the materials room to set ambient colours (> 1 if necessary) so that they seem to glow in the dark - might be an alternative to using additional lights...) Cheers, Diolma