Thanks - found the issue within this discussion group. Windows Live Toolbar!

"Peter W" wrote:

> I run IE7 on XP and experience difficulties navigating between websites?
>
> IE7 fires up ok and the initial 'window' works fine. However, if I try to
> open a second 'window' (would normally come up blank) within the same IE7
> session, the whole session locks up with 'Not responding'.
>
> Closing and starting up IE7 works fine - same if I stick to only one
> 'window' per session. Seems to be the same with website links - works fine
> when a new IE7 session is automatically started but not when it's the second
> 'window' within a session.
>
> Tried de/re-installing IE7 (to IE6) - no difference? No specific evidence of
> a virus?
>
> I'm trying not to tie the start of these symptoms with Safari, which I
> installed and then removed around the same time?
>
> Any suggestions?