Tina, I just did the exact same thing (great minds think alike!) and mine works fine now also. I tried with the Poser frog and it worked fine, then I tried it with the Zygote CD frog and got the same error message. Bloodsong, Maz and MartinC, thanks once again for your time and effort, it's GREATLY appreciated. Bloodsong, thanks again for the wonderful new frogs and maps, they're great!!! Coldrake