make sure that the drive isn't jumpered to compatability mode (limits drive), make sure the detect in bios is set to auto. if its not in the bios, but rather when installing them if using XPPro, do NOT use fdisk. Use XP installer or diskmanager to stripe or dynamic you drives. Guess the biggest question is... is there already an o/s? Are you just adding a drive but its detected wrong? If using XP dont use FDisk or Format as they are dos commands, instead use the diskmanager in XP. If installing brand new use XP installation to create you partition and format other wise you will get incorrect configurations.
If you argue with an idiot he will drag you down to his level and beat you with experience.
I am not a fast writer.
I am not a slow writer.
I am a half-fast writer.