Acer laptop

Hello,
ok so i have a Acer laptop (Netbook Aspire one 11.6") and one day it froze. so i turned it off then i turned it back on. the screen logo came up and then it went to a screen where it says media check failure. here is exatly what it says after the logo. (This has happened one other time. it first happened the night i got it.)

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

This Product is covered by one or more of the following patents:
US5,307,459, US5,434,872, US5,732,094, US6,570,884, US6, 115,776 and
US6,327,625

Realtek PCI Express Fast Ethernet Controller Series v1.15b (090312)
PXE-E61: Media test failure, check cable
PXE-Mof: Exiting PXE ROM
OperatingSystem not found

plz help i cant access safe mode and thats how i fixed it last time.
Tell me something. i think it wont find the harddrive. (I dont have a disc drive)
oh and i already tried connecting it with an internet cable
when i connect it to the internet it cant find a boot file and i already tried ALT+ F10.
that didnt work. or i pressed it when the logo came up, i think that was the rite time to press it to start safe mode. PLZ HELPPPPP!!!!!