Philips Laptop Problem

[Mark...]

Hi,

When i turn my laptop on i get the Philips start up screen followed by this message:

'Intel UNDI, PXE-2.1 (build 082)
Copyright (C) 1997-2000 Intel Corporation

For Realtek RTL8111B/8111C Gigabit Ethernet Controller V2.16 (080424)
PXE-E61: Media test failure, check cable
PXE-M0F: Exiting PXE ROM.
No bootable device -- insert boot disk and press any key'

Could someone help to try and fix it?

Cheers.