我下载了matlab r2008a,但解压后安装不了。点击setup后,弹出出错窗口说: The application or DLL C:\Docum~1\Users\Locals~1\Temp\TMWF.tmp\java\jre\win32\jre\bin\client\jvm.dll is not a valid Windows image. Please check against your installation diskette. 请问该怎么解决?我的C盘空间不够,所以解压在移动硬盘准备在D盘安装。安装前刚卸载了C盘里旧版的matlab。