E-on doesn't want your Infinite INST code, they want your ProStudio Inst code to log to their site. And your ProStudio INST shows on the splash screen. If you give them this code, and explain your problem, they'll help. I know that for contacting Tech support, you just need to type in your Infinite serial, OR the INST, they actually accept both. Now did you update your Infinite copy before entering your serials, as suggested by ticounne? This is the only way it's gonna work. So, if you have installed Infinte and tried to type in your serials before updating, uninstall Vue, re-install, get the update, and ONLY THEN type in your serials.