Squid don't fail me now

Hi All: My squid proxy has gone south on me and nothing seems to bring it back. I even went to the extreme of re-installing SuSE7 (while saving the squid.conf file) and it still will not work. I have tried to log on (we are using dialnet as the parent) but it times out waiting for confirmation. I have messed about with the hosts and resolve files and get messages that I am not authorised to access the parent cache etc. If anyone could call me and help me out it would be much appreciated. Paul Ps This is now running through a 30 day Win Proxy software on NT so if I can't get it to work it will be the end for Linux.....