My drive was not detected in either. I unplugged the power source & usb several times and finally got it to show up on my Mac (never had to do this with older Seagate drives). However that is when the real issues started as I installed the drivers and software and my 2 week old top of the line 2012 brand new Mac Air become VERY unstable. I received the equivalent of the blue screen of death as it crashed several times when I plugged the drive in after installing the software.
After searching the internet it is clear this is a reoccurring issue with these 3 TB USB 3 drives. I removed all of the software from machine and it appears to running normally now, however I have not plugged the drive back in.
I have always owned seagates, I have a total of 4 older ones that are working now, however the construction and reliability has dramatically decreased over the years. Yesterday I bought 2 3TB Backup Plus drives and a 1.5TB Flex portable drive (about $500 in total). However I will probably be returning everything to BBuy today and making a formal complaint. It is clear you have an issue with this drive, the message boards have quotes from your staff saying the drivers and USB3 station is not working well with Macs and you have sent out USB 2 stations to customers.
Also, these drives run much hotter then previous drives.
