Bugs OHare

So to keep this short,I try to log into my Imprudence viewer and I get "DNS server cannot connect to host name" or some horse **bleep** like that,but I can log into my SL 2.0,.6,whatever farkin viewer theyre on now.Thing is it shows me as I looked months ago,it's like a blast from the past roundhouse kick to your nutters held out with a vice grip.Anyone know how I can solve this problem,normal SL troubleshoot suggestions arent working for me.