無法開機NTLDR is missing【求助】

我灌好win2k server後
開機就只顯示NTLDR is missing
請問這是什麼該怎麼辦

　　[url=http://support.microsoft.com/default.aspx?scid=kb;en-us;Q255220]"NTLDR Is Missing" Error Message When You Upgrade or Install Windows 2000 Over Windows 95, Windows 98 or Windows Millennium Edition[/url]

　　[url=http://support.microsoft.com/default.aspx?scid=KB;en-us;318728]HOW TO: Troubleshoot the "NTLDR Is Missing" Error Message in Windows 2000[/url]

　　[url=http://support.microsoft.com/default.aspx?scid=KB;en-us;318948]"NTLDR Is Missing or Corrupt" Error Message During Windows 2000 or Windows NT 4.0 Upgrade[/url]

小磁片要拿出來....