Autocad安装老是出现致命错误，请高手指教，谢谢

我之前装个一个版本的CAD，用的挺好，用注册机破解过。后来我装3DMAX,3D出现问题，我就把系统还原了，在网上重新下了个3DMAX09的，安装注册成功了，可是我的 autoCAD就是装不上啊，老是说出现致命错误，后来我在网上下了其他的版本的CAD还是装不上去，都说出现致命错误。下面这个就是我后来安装饿一个版本说是出现的问题，对这个问题我不是很清楚，请高手帮我分析一下啊，谢谢了

[8/6/2011 19:11:28] === Installation started on 20081206-1020 by Administrator ===
[8/6/2011 19:11:29] [Info] Windows Installer upgrade is not required
[8/6/2011 19:11:29] System Version = 3.1.4001.5512
[8/6/2011 19:11:29] Installation skipped: MSI Runtime 3.0
[8/6/2011 19:11:29] [Info] .NET Framework Runtime upgrade is not required
[8/6/2011 19:11:29] System Version = 2.0.50727.42
[8/6/2011 19:11:29] Installation skipped: .NET Framework Runtime 1.1
[8/6/2011 19:11:29] Installation started: .NET Framework Runtime 1.1 Language Pack
[8/6/2011 19:11:29] Command = "I:\Bin\AcadFEUI\support\dotnetfx\chs\langpack.exe" /q:a /c:"inst /qb"
[8/6/2011 19:11:29] [Error: 1603] 安装时发生严重错误
[8/6/2011 19:11:29] Installation failed: .NET Framework Runtime 1.1 Language Pack
[8/6/2011 19:11:29] Installation aborted
[8/6/2011 19:13:57] === Installation ended ===

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