XP fresh install and BSNL broadband.. should i backup?

[nix]

i am going to do a fresh re-install of XP pro and i need you help. i made this blunder of inserting my friends pen drive into my system and the problems just wont go. now, do i need to backup some sort of network settings (BSNL net settings)??.
should i keep the modem connected to the PC while i reinstall the OS??

 

[RCuber]

^^^ note down the IP configuration, gateway setting and DNS address.. that should be enough. And BTW backup your personal data too

 

[The Conqueror]

Yeah Backup your Personal Data and and Documents n Settings.........
No,Modem doesnt not need to be connected to the PC while you reinstall the OS (If you have the XP installation media)

 

[nix]

yes i have already taken backup for personal data.. thanks guys...