Goto Tools
Goto Internet Options
Goto Advanced
Underneath Browsing - uncheck "Useinline AutoCOmplete for Addresses"
I have never tried it, but that should do the trick.
Oh - and please buy all the stuff below
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TopBucks.com - Converting at better than 1:130
David Lace Content - Highest Quality Teen Content
ConversionCash.com - Make Money off your WebTV Traffic