I have Windows XP Pro and the other day I disconnected my network cable and started my machine. When I came to the logon I entered my Username and Password and it came up without a problem. No errors, nothing about not finding the domain. Now it will not map any network drives or access the internet.(with the cable plugged back in) If I use the ping or tracert command for anything other than 127.0.0.1 the command prompt crashes and tells me that the command failed. Even if I ping my own address I get the same error. I really don't want to format but will if I have to. Has anyone encountered anything like this.