An WD "blue" 3TB drive formatted to GPT (I used MiniTool) that shows correctly in Win7; 2800GB total, 760GB used, 2035 free When I tried to add 68GB of mp3's, over the Network, I received an error that I need something like 70+ GB more space. I took the drive out of the X10, connected it to a eSATA port on my Tower, did the same procedure with no apparent issue. Put it back in the X10 and it appears that all is well. So what's wrong???