Hello,
Do you mean internet explorer?
Why can't you use it?
Is it giving any errors?
Since when this occouring? (You installed updated anything?)
Seems like your machine may be infected.
Ok do a system restore to a date when the problem has not yet occoured, to do a system restore follow the steps in this guide: http://www.howtogeek.com/howto/windows-vista/using-windows-vista-system-restore/
See if that works.
To do a system restore do this:
First click on start(The window icon on your left hand bottom corner of screen)
Now in search box type system restore
click on system restore
When system restore starts > "choose a different restore point" > and choose a restore point when the system was all working fine > follow the steps to restore.
Computer Systems Analyst
Professional computer engineer & working as systems developer with top multinational company
Did you restored your computer?
Go to this link click on "fix it" and reset internet explorer: http://support.microsoft.com/kb/923737
See if that works. I will be going offline for sometime. I will respond when I come back.
Do a system restore(step by step instructions):
I do not know how but bfore using your last suggestions the internet began working properly. ThANK YOU AND LET ME KNOW IF I OWE YOU ANYTHING.