Can not clone HD to this drive

I use Macrium Reflect as the backup agent. When I try to backup to my My Passport 2G drive I get an error message “:incompatible drive sector.” I went into Disk Management, Format to set the sector to 512K (it is currently 4096 on NTFS but there is no 512K on the dropdown). I do see 512K under ex-FAT but not sure that will do the trick.




Since i do not have this software, i have not tried this, lets see if another user an share some information or tips on this matter.