I'm gonna go with Majar_A on this one.
Where windows 8 is new it might just be that seagate hasn't got the drivers released yet. But I don't think the "shoddy install" is any help.
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7600)
Mother Board: Gigabyte GA-880GM-UD2H
BIOS: Award Modular BIOS v6.00PG
Processor: AMD PhenomII X4 965 Processor, 3.4GHz(Stock)
Memory: 16GB RAM
Graphics Card: GeForce GTX 550 Ti Memory: 1024 MB
GPU Driver: 220.127.116.1161
Direct X 11