Can't download Mountain Lion - error message

The product distribution file could not be verified.  It may be damaged or was not signed.

Spotlight won't find it as it's a system(-ish) file, so doesn't expect you to be nosing around in there!
You should see sub-folders below /var/folders. All I did was explore these sub folders (and any sub-sub-folders etc) until I found the com.apple.appstore file. Then (peeking from behind my hands) I deleted it.
I found mine in var/folders/gn/hdq2sz..../C
Then disable everything you can in Virus Barrier and try and install from the appstore again. I can't remember if I rebooted before retrying or even quit and restarted app store, but it might be worth doing that if it still doesn't work.
Good luck.
Message was edited by: Alasdair Mackie1

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