Debweb

Here is the short version- Have had a new computer with Vista Premium for 4
weeks and have had this problem almost since then.
It was at first only on one site that I am on daily and though I got rid of
it but it has
started again. I get aboutblank white page that covers up the page that I
select. Aboutblank sometimes flashes in the address bar. It has not affected
my home page but if I go to Internet options where I have made bellsouth my
home page, under default is msn but if I click blank page it says aboutblank.
Have tried to delete it but won't. I had heard this could be spyware so I
have used adaware, cwshredder and about 4 others but still there. A tech on a
site looked at my hijackthis report and had me delete a few things and it
went away off this site but started when I would search for something. I have
also heard this could pertain to IE7 settings though mine are on default my
tabbing is un enabled.
Any idea what this is and how to fix it?

Deb