Booting fron USB -hangs

[kulkulcaan]

I'm booting off a usb pen and it hangs at the following point;

PCI:No IRQ known for interrupt pin A of device 00:1d.0 - using IRQ 11
usb-uhci.c: USB UHCI at I/O 0xbf80. IRQ 11
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered. assigned bus number 1

Has anybody seen this before ?

I'm on a Dell Laptop (1300)

Thanks,

K