recently used ad-scan program(spy-bot search and destroy & microsoft giant adware scan beta1) and noticed a question mark appeared on the lower right hand side of the status icon, go into properties and it's ip and subnet mask becomes all zeros,i tried to use repare, but it gives me the following message:"The following steps of the repair operation failed:Renewing the Ip address Refreshing all Dhcp leases and re-registering DNS names please contact your network administrator or isp. i also tried to reset it which works very well usually, but it does not help this time, it is a westell versalink w327 wireless modem-router combo which is verizon official modem for now, is it possible that i deleted some system file during scan? thanks for help in advence