Just got a hold of a neighbor which is quite tecky about such stuff and he had a clear simple solution for anyone experiencing ISP/Vista flaws of late;
1-- Clear up System32/Drivers/etc folder of its "probably" corrupted Host files with default backups.
2-- Swipe out TCP/IP stacks with dos cmd; netsh int ip reset c:\resetlog.txt
3-- IE7 browsing through a proxy session with Ultra Surf 9.4.
Until the WAN routing is resolved by any of your providers (be it 1und1 or not, btw). Mine being, Bell Sympatico.