HOW DO I CLEAR THE DNS CACHE ON MY COMPUTER?

To clear the DNS cache on your computer, you need to flush the DNS caching. Instructions to flush the DNS, in accordance with your operating system, are given below :
To flush the DNS cache in Microsoft Windows (Win XP, Win ME, Win 2000):
Start -> Run -> type cmd
In command prompt, type: ipconfig /flushdns
To flush the DNS cache in Linux, restart the nscd daemon:
Type /etc/rc.d/init.d/nscd restart in your terminal.
To flush the DNS resolver cache in Mac OSX Leopard
you can use the command dscacheutil -flushcache :
bash-2.05a$ dscacheutil -flushcache
To flush the DNS resolver cache in Mac OSX versions 10.5.1 and before
the command lookupd -flushcache will perform the same task:
bash-2.05a$ lookupd -flushcache