This morning when I tried to start-up SW (2013 SP0), I got a message that read 'This limited life version of Solidworks has expired'. There is no option but to close it. Tried opening the download manager, but it couldn't find the files? Was running fine, then one day I couldn't use the toolbox, and now I can't even open the download manager. Do I need to erase and re-install all over again? SW12 is still running fine, but can't open up files I've edited in 13.