I am using Dell Optiplex GX2700 on Windows XP Professional. My problem is that i can not connect to the internet. I recently purchased the computer second hand and it was working on line just fine, I deleted various junk files and afterwards no internet. I have checked the actual line - working fine. Went thru possible faults with the service provider NTL and was told the ethernetwas not available. What do I need to do??? Bear in mind I am a userand am certainly no expert. Thanks.