Some web sites, like this one for example, seem to work normally.  Others, like Yahoo.com (email) refuse to load at all.   
I get a message
              The connection has timed out

                The server at www.yahoo.com is TAKING too long to respond.

                # The site could be temporarily unavailable or too busy. Try again in a few
                moments.

                #   If you are unable to load any pages, check your computer's network
                      connection.

                 #   If your computer or network is protected by a firewall or proxy, make sure
                     that Firefox is permitted to ACCESS the Web.

Other off-line computer functions seem normal.  Spybot doesn't find anything.  I've cleared the cache, run Ccleaner & defragged to no avail.  Same symptoms in IE & Mozilla.

Another forum suggested it might be an out-of-date Java or Adobe flash player.  I was able to reload that latest Java but Adobe is one of the sites that won't load.

I've searched these forums but haven't seen something similar.  If something like this has been addressed in the past I'd appreciate a point in that direction.

Thanks!

Windows 2000SP4
P4 1.66
256 K ram

Could be worth re-posting this in the malware section of the forum.  Actually this sounds more like a connection issue to me...
What type of connection is this ?
When's the last time you reset your router/modem ? ?

BTW you should consider adding some more RAM to that build...both you and your machine will be happier... Quote from: patio on April 04, 2010, 09:37:00 AM

Actually this sounds more like a connection issue to me...
What type of connection is this ?
When's the last time you reset your router/modem ? ?

BTW you should consider adding some more RAM to that build...both you and your machine will be happier...