I own Solidworks 2012 but I've lost the DVD for Solidworks 64-bit. I'm coming up at a dead end because I don't have a continuing renewal for the software so I can't download it from the website. I have the 32-bit DVD but I want to install it on a 64-bit Windows system and it won't let me. Who should I contact to get a replacement disk for Solidworks 2012 without buying a very expensive service contract? I also don't need to upgrade to the newest software because at my level of design 2012 is just fine. I'm also a hobbyist, not a professional designer.