I just recently bought a Macbook Pro about 2 weeks ago. Everything's been working great up until today. First I noticed that my MBP wouldn't recognize my phone when I plugged it into the USB. (Its an Android phone - don't bash me for it) I just thought it was my phone at first. A couple hours later I tried transferring some files to my external hard drive (1TB iomega) and my MBP wouldn't recognize it. I plugged in another one of my external HD (320 GB Maxtor), same problem. I then tried my other external HD (500 GB Western Digital), same problem. I tried a different USB port, different cord, rebooting the mac, nothing seems to be working. It will recognize my ipod touch tho. Being that its happening on 4 different devices, I doubt its the devices themselves. Its not the cord because I tried 2 different ones, 3 if you count the one for my phone which uses micro USB. I am very new to the mac world so other than the things I have tried already, I don't have a clue what to try next. Any help would be greatly appreciated. Thanks in advance. Oh yea, one more thing, all my hard drives are formatted for pc being that I just recently bought my MBP, I had all these hard drives before my mac. And they have all connected fine to my MBP in the past week or so.