Operating System: Windows XP/Vista/7, Mac (10.4+)

Browser: Internet Explorer 7/8, Firefox 3.0+, Google Chrome and Safari

Internet: Connection: Minimum 256 kbps or above

Outbound Port to be opened: 80 (HTTP), 443 (HTTPS/XMPP)

Memory: At least 256 MB RAM and a Pentium 3 or faster processor

Few browser related points that you will need to remember:

Cookies: Allow

JavaScript: Enable

Flash Player: Flash Version 9.0.28 or Higher

Collaboration port 443: Open

Pop-ups: Allow