I have purchased bitdefender 2011 Total Security just yesterday (3 PCs/1 Year) and have succesfully activated it on one computer than had an evaluation version previously installed. When I went to install it on a second system (after uninstalling an older version using the bitdefender uninstall tool) at the Register Your Product screen I enter my key and get the message that the product has been successfully registered but when I get to the next screen (Activate Online Features) and enter my account info it gives me the error message "The license key you have entered is not valid. If you have purchased this key contact Customer Support to get help with this issue". The same message comes up still if I try to make a different account whether I want to activate online backup or not. Obviously this prevents the installation altogether. Also if I cancel the installation and try again but just under a trial evaluation the same thing happens when I get to the screen, telling me the key is invalid (same message as before) even if I don't input any key at all. This is on a system running WinXP 32bit SP3.
Thanks
