Hi and thanks for any replies. I have an oldish SmartDisk FW external HD that was no longer large enough for back-ups. So I opened it up and replaced the 80GB drive with a250GB Maxtor. Everything works fine except the drive comes up as 128GB. This was only an INTERNAL drive problem to my knowledge and I cannot understand why this is. Possibly a chipset cause? I am using 10.2.4 on a 733 Quicksilver G4. Thank you for any eventual replies and possible solutions.