I tried to activate my PSN-account on anothers PS3, but I can't activate it. It says that I already have activated on 2 other systems, but I have just did it on 1 other. It is very annoying. I tried to do it over internet (to deactivate all systems) but it says that i did it to short ago, and i can't do it again. Last time I did it must have been half a year now.