You must have upgraded recently with curiouslabs patch that has all the spy ware in it, That searches the internet for other copys of the poser cd install on your system, If there is another instance of poser 4 having been run from another ip address the spyware will shut you down and poser will not open again, I installed my poser 4 at work as well as home and that little curiouslabs spy shut me down at both locations, I had to contact curious labs for help or use poser reinstalled offline, After using soap a file cleaner to remove the spy registration file from my computer. I like the Metacreations version much more better.