hehe,I encountered the same prob.The version we used recently is Pre-release version, the serial number only valid till 31st Jan.2004 Activation is needed to upgraded into Full version: There are 2 ways for D-version users to solve this problem: First, download the full version from internet-TDA version(the file name is something like: photoshopcs_tda.exe). But I searched with google and baidu for a whole day, cannot find any link to download. Second,the easiest way, what I am using:change your system date before 31st Jan.2004 whenever you install or use the photoshop CS. previous message (more...)