Does it "specifically" mean that though - is that what the error message means"? As I've been using it all day and then had an hour break - powered up again and got that message. I'm in CL's now looking at the site to see if it had anything here - saw the "Poser 5 - Service Release 4.1 Application Updater" is this the one you mean? I've downloaded tons of content over the past 2 months.. will this effect that by downloading the update. If that error message I received means I need to install the update - why on earth didn't it say that LOL. THANKS HEAPS - Karen