If you use Perfmon, it can get really old looking at all of the vertical lines in the graphs. Here is a tip that will revert back to the old view we had in the NT4 days.
283110 Vertical lines are displayed in the Sysmon tool that obscure the graph viewhttp://support.microsoft.com/default.aspx?scid=kb;EN-US;283110
Also, if you would rather see that you have 2,000,000 MB of RAM instead of 2000000, you can add another registry key that adds the commas.
300884 HOW TO: Display Comma Separators in the Windows Performance Tool in Windows XPhttp://support.microsoft.com/default.aspx?scid=kb;EN-US;300884