It worked on my machine (PIII 600MHz, 128mb RAM, GeForce 2 card). When I opened it up, it asked me for the file "Soffit.jpg" which I don't have, so I hit cancel. It didn't come across any missing files after that and it loaded item.

Then...I opened the file in a text editor and noticed something strange.

Right at the beginning of the .pz3 is a movie reference (which usually references AVI or MOV files) pointing at a .pz3 file.

Azl, I can't exactly reproduce the problem on my computer, but I would take that movie reference out of your pz3 and give that a try.

Hope this helps.