I hate to be the bearer of bad news...but you're SCREWED. The same thing happened to me before. Your POSER.EXE and POSER.RSR have been corrupted. You'll have to do a complete reinstall, and since your CD is in your brother-in-law's car, you can't do that. When you DO get it back and reinstall, back up those two files in case it happens again. I made a backup of them, zipped it, and called it POSER-RESCUE.ZIP. That way if it happens to me, I just unzip it, and it overwrites the corrupted files. Now, as for a serial number, THAT I can help you with. Look in your Windows directory. You'll find a subdirectory called "Metacreations". In this subdirectory is a file called POSW400.TXT. Your serial number is in that TXT file.