installed f4 not able connect to internet....tried al the configurations...
 

i have tried ot all the recquired changes in network configuration and network proxy..but unable to connect to net.iam not able to activate the hardware network drivers.... its showing the error: ethernet not present..activation delayed....plzz suggest something

Well you didn't tell us much so lets start with these.

http://www.linuxquestions.org/hcl/
http://www.linuxhomenetworking.com/
http://linux-newbie.dotsrc.org/