??? what registry, the windows registry?
I'm not sure what you are attempting to do. I do know that
you can change you startpage in IE by going to the tab
tools -> internet options and typing in your new address.
If it is a registry issue all I have for MS/internet
settings is a 0x val for proxy enabled. If you know
specifically where this registry entry is I could take a
look at it although I have a number of registry
entries..... and I'm not certain where it is for home
pages however here is one discusion elsewhere which
talked about removing the ABOUT:Blank
http://www.icronticforums.com/showthread.php?t=4098&page=3
as well here is a link to a spyware remover program
although I cant be certain if it is secure.
http://www.spysweeper.com/spyware-remover-download.html
this will allow you to remove adware which may be giving
you a bunch of altered start page loads etc..
I may be able to give you a more specific anwser with some
more information though. As I dont so much know what you
are attempting to do. I just got a visual of a old style
check box where it doesn't come up as an option you can
select.
I'll end the note here as I may be currently being hacked
as I'm getting a bunch of corrupt file notifications.