(Running Vista 64bit, Both mine and my dads PC's are virtually identicle) Right, i just got an older LACIE External Firewire HDD from my dad which hes been using on his current PC, and it works. So i happily plugged it into my PC and... its a nono. Now heres were it gets annoying for me. I had a look in device manager and the HDD shows as a 'SBP2 Compliant IEEE 1394 device', . And according to device manager its 'working properly'. When i plugged it in first windows automatically installed dirvers for it, Problem perhaps? I then went into the properties on my C drive and looked under the harware tab, and the HDD shows up there (Full name and connection type, Location is listed as LUN 0?) I went into the properties from here and Attempted to populate it to see if its reading properly. This is another Odd bit. After populating the reults show as: Disk 1 Type: Unknown Status: Not Initialized Partition Style: Not Appliciable Capacity: 238475 MB Unalocated Space: 0 Reserved space: 0 What... Could it be that i need to format it some how, i cant seem to find were if this is so... Any halp would be apreciated thanks!