selective connection problems

[Guest]

I am unable to connect to the internet through itunes and firefox.
Previously I had been able to use both these programs without trouble. I am
running vista on an hp pavillion

About five days ago (after installing a series of Vista updates) I lost my
connectivity through IEv7. I changed to firefox and had no trouble for about
a day, then that failed also. I noticed about that time that itunes was
unable to connect to the online store.

I went back and uninstalled the recent updates and now I am able to connect
via explorer but not via FF or itunes. interestingly when I startup in safe
mode everything works.

help would be very welcome

 

[Andre Da Costa [ActiveWin]]

Have you installed any applications recently that might have affected your
Internet Connectivity?

 

[Guest]

no, my last program install prior to the trouble was two weeks earlier.

one other piece of info that I didn't include earlier--my google desktop and
Southwest Air notifier both seem to connect fine.