Might also clean the CD and CD drive, and if this was an .iso burn from a
download it may have been corrupt or not burned correctly to disk. Burning
at a slower speed may help, as may a new download.

--
Best of Luck,

Rick Rogers, aka "Nutcase" - Microsoft MVP
[url]http://mvp.support.microsoft.com/[/url]
Windows help - [url]www.rickrogers.org[/url]

"Frank" <fb@nospamm.cmm> wrote in message
news:OhuLSjggHHA.1388@TK2MSFTNGP05.phx.gbl...[color=blue]
> wf4bk wrote:[color=green]
>> I'm having all kinds of problems installing Offfice 2007 on a Windows
>> Vista 64 bit Ultimate operating system. I've tried copying the CD to a
>> file and tried downloading the free trial from the web. I've also
>> re-installed the opertaing system but nothing seems to work. Most of the
>> error messages are "digital signature does not validate or is not
>> present." While I've got a ticket open with Microsoft, they haven't been
>> much help so far."
>>
>> Anybody got some suggestions or having the same problem?
>>
>>
>>
>>[/color]
> Runs perfectly on both of my x64's (XP Pro & Vista Ultimate).
> Try this:
> Delete all temp files.
> Dl and install Windows Install Clean Up.
>
> [url]http://support.microsoft.com/kb/290301[/url]
>
> Run the utility and use it to remove all instances of Office 2007.
> Reboot and try to install again.
> Frank[/color]