安装UG NX 7.0时出现如下的错误:先出现的这个:the cabinet file "data1.cab"required for this installation is corrupt and cannot be used. this could indicate a network error reading from the cd-rom,or a problem with this package.点击忽略后出现 FDI ERROR 以后只能退出安装,但我有一个朋友的电脑又可以安,请问哪位大侠知道原因,苦思不得结果,???