I'd say that the most likely reason it didn't give you a warning about changing the file extension is because you might not have. Windows 95/98/ME, all default to hiding the file extension for a file, the .txt, .exe, or, .cr2, .pz3, etc... So if these are still hidden and you try to change the file extention of a file that just shows up as 'filename' and its really 'filename.txt' but windows isnt showing the .txt, then you get filename.cr2.txt or whatever, which still shows up in windows and poser as a .txt file. If you're using windows 98 or ME you can change this option by clicking on start, going to settings, and folder options, then click on the tab that says "view" and take the check out of the box that says "hide file extensions for known file types" In windows 95, I can't recall exactly where it is, but you should be able to get to it by opening Windows explorer, and clicking on view and going to options, you should be able to get to the same general 'folder options' window there. Hope this helps Fornit