Microsoft office enterprise 2007 - unable to install

I was trying to install Office 2007 Enterprises on a newly assembled PC but the setup fails every time telling “setup cannot continue because a required file is either corrupted or not available. Run setup again from the original source disc or download location.” Well am trying to install this from the Original disk itself, then what else disk is it asking for ?

Let me tell you that I have already used the same disk earlier on 2 PCs running with XP and Vista. There was no problem on those systems. Is there something wrong with my this system ? For instance, let me tell you it is Running with Vista having amd athlon 64x2 dual core processor 6000+, 2 gb ram.

Any advice is appreciated.

Well as far as I know Office 2007 Enterprise is intended for a Single installation only, how did you installed it on 2 PCs and trying to install on 3rd ? Anyway it comes with Enterprise volume only license and you can get this only from your employer (Home Use Program).

Yes, I know that and I brought this from my employer through Home Use Program. Also I just tried it only old PC to see if it is the DVD or any other thing preventing me to install Office. FYI, I am installing this on only one PC.