Windows 2000 will be around for a couple more years but you should start planning now to replace it. Windows 2000 is on "Extended Support" as of 6/30/2005. Windows 2000 Professional was last sold by Microsoft to users 3/31/2000 and OEMs 3/31/2005. The last Service Pak (SP4) was 6/26/03 and no more are planned. Monthly security updates are still available through 2010. However, Internet Explorer 7 is not available for Windows 2000, which means a lot of Web applications may not run at least as more migrate to IE features.

Regardless of the OS, we recommend 2 GB RAM on your desktop running Navigator, 1 GB minimum. 4 GB recommened for Windows Vista. If your desktop has much less RAM and can't take more, it's time to upgrade.