The Browser Helper Object Internet Explorer (IE) Add-on, ''
BHOManager Class'' from HP (BHOManager.dll) under %windir%system32, handles the BROWSER test object methods such as [link text][1]BACK, FORWARD, HOME, REFRESH, NAVIGATE, etc. If the mentioned DLL functionality gets blocked/disabled/not loaded by the browser, it can cause general run errors. Please refer to the HP KB article KM538333, which I'm uploading. It is still relevant for UFT as well.

[1]: /storage/temp/288-browser-navigate-issue.pdf