Hello all, I did a clean install of Yosemite the other day and today just got the time to upload some some photos I took from my DSLR. A card I use all the time. I put it in and does not show up in finder. I check Disk Utility and unable to mount or verify. Well alright, I'll just go to another computer and transfer the photos to a flash drive I used multiple times before. It doesn't show up either. I ask kindly for a solution because I am a tad frustrated. In case its relevant: MacBook Pro 15in 2010 Thank you.