Ok...on one of my ISA servers...any web proxy client that goes to www.microsoft.com gets presented some "Mr Dog" webpage. Now my other ISA servers resolve fine...in fact if you simply point a client to a different ISA Server...and refresh..MS comes up..then switch back..and its back to "Mr Dog" again. This would seem to me an obvious ISA cache problem no? I changed the ISA Cache to 5megs...restarted...then changed it back to 1GB....however it still happens. I guess its possible the MS.com cached page was within that 5megs...but that seems highly unlikely.