Have had this problem in the past with Zygote's DLs. I'm on a MAC: If the file indeed downloads, and says invalid, or won't open with Stuffit Expander, reboot the MAC and rebuild the desktop. This seems to help and then the file should be able to be un-stuffed. As for the PC, I'd go with Alex's suggestion. It seems MIVA (I had the choice to use this cart on my own site, and chose not to. Lots of bugs) may screw with the extentions. As with the MAC it says ".sit" but on download, it says saving as a "file" not the usual "will open with Stuffit Expander" Also had that pesky "Expiried thing several times. Zygote is very good at getting you the file though. But I KNOW you bought it NOW you want it NOW. James Hmm, keep trying.