Hi there,
I am not sure about the cookies problem, but if your default homepage gets changed, you have been infected with spyware.
Go to this page:
http://www.lavasoftusa.com/, click Ad-Aware in the left menu, download the tool, scan your computer and it will tell you what nasty software is running on your system. It will also remove it for you.
Can you please not cross-post your messages? They will be read anyway....
Cheers,
Imar
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Imar Spaanjaars
Everyone is unique, except for me.