I've had the problem of not being able to save OBJs from time to time. In my case, it looks like it's saving properly, but the OBJ file is not created. I'm not really sure what causes it. It may be a memory thing, because closing down Poser, then opening it again sometimes fixes it. Never had all of Poser grayed out, though. You may want to try re-installing. It's not that big a deal. I've done it several times. (Poser does tend to go corrupt now and then.) Rre-installing didn't mess up my runtimes or anything. Just install it on top the existing installation. If you're really paranoid, you can back up your runtimes to CD or DVD first. Probably a good idea to do that anyway.