Help with Both Wireless and LAN connection

hey guys how is it going on.... ive been working normaly on my laptop and
dont recall any softwares that installed before the problem came.. basicly i
was on hibernate mode (which i always do).. and when i switched on the laptop
.... it automaticly connects to my wireless lan.. but the prob is .. its not
showing me an IP connection.. the fields are empty in the detailed page (
auto configed) ... i tried to plug in the LAN wire same thing shows me its
connected but no effect empty tables... no gateway no nothin :S...... i tried
to restore the pc i was like maybe it was a dafftie update that did that..
and LOL made my pc worse loads of errors so i UNDO the restoration... sooo
guys i am desprate ive been workin on it 4 hours :-s ..and i couldnt find any
solution for it.. restarted the modem nothin happend... restarted my pc and
in safe mode the same thing happend.. plz help me out thnx