I've bought PS CS5 as an upgrade to CS3. Changed computer, deactivated PS on old computer. Managed to activate CS3 but not CS5 on new computer. Tried Adobes so called support without getting any help, Case #0208308049 closed without any help. How can I make CS5 work??
Looks like your case was closed automatically because you didn't respond the agent after a certain # of days. Easiest way to deal with this is to use the chat option for install support: http://adobe.ly/yxj0t6
Let me know if the chat agent isn't able to get you going.