We are sorry you feel that way.
Please bare in mind that what you are doing is not the standard use for an extenarl drive
As you might now, there are certain issues and limitations that come with the use of a drive with two different platforms.
Regardless of the brand name for the drive the file system will need to be changed to allow connectivity.
Each file system has its own advantages and limitations.
To achieve the best performance possible using any external drive is recommended to format for one OS only.
However, if you want to use it to cross platforms you can do it by using one application or formatting on another file system.
For additional information and troubleshooting options please contact support directly.