R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
http://minisearch.startnow.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
http://minisearch.startnow.com
R1 - HKLM\Software\Microsoft\Internet Explorer,SearchURL = http://
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer provided by Roadrunner
R3 - URLSearchHook: HyperSearchHook - {85ABC8C7-957C-4F97-BC7B-FE4ED2488907} - C:\Program Files\Common Files\Hyperbar\HyperbarSS3.dll
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Acrobat\ActiveX\AcroIEHelper.ocx
O3 - Toolbar: (no name) - {0A4DC360-26A5-4FC1-8FB2-ADD00738A99B} - (no file)
O3 - Toolbar: (no name) - {ACB1E670-3217-45C4-A021-6B829A8A27CB} - (no file)
O3 - Toolbar: Startnow - {1BC1FC4B-B0D2-4D8D-9307-2E40E2A8C257} - C:\Program Files\Common Files\Hyperbar\Hyperbar.dll
i suggest you make these go bye bye because i had the same thing same problem.
took me ages to find out what to do...but hijackthis should solve your problems.
btw. i am very sure of the lines i selected.
good luck