Recently I've been having trouble trying to open up my cd/dvd writing software and my photo editing software. Both were installed on my system when i bought my pc and have been working fine until a few days ago. I downloaded software named "System Mechanic" and ran a system check using it, ever since then i have been getting messages saying certain parts of each program is missing and to re-install the application, only trouble is, I don't have the discs! Does anyone know of another way round this? Your help would be much appreciated! Thanks!