A few quick tests: Dell OEM XP Pro SP3, came with the laptop, setup from CD works with USB stick connected. Same source does not work from USB and beta6. No floppy drives reported by grub4dos. Newer grub4dos version does not make any difference, neither did AHCI/IDE mode, nor Standard HAL, nor the modified ntdetect.com. In IRRT (Inter Rapid Restore Technology) mode (SATA options are DISABLED, IDE, AHCI and IRRT) grub4dos reports the internal disk mapped in a funny way: To test with older grub4dos version, WinSetupFromUSB 0.2.3, cdob's firadisk ISO setup, newer/older BIOS and check if some seemingly unrelated BIOS options matters. Out of town for the weekend so updates most likely will be after Monday. @cdob To clarify- in Text mode, when partitions are supposed to show up screen goes completely black/blank. And guys, please, no jokes about Dells