Symantec AV & Norton AV different definitions?

Hi all
I have a question, I often submit different samples to www.virustotal.com and I noticed than in list of AV's Symantec have newer definition than my NIS 2007. For example two hours ago I submited sample and Symantec already have definition dated 05.08.2007 while my NIS 2007 have 05.07.2007.
I run liveupdate several times but it shows there is no new updates...
I know that Symantec and Norton have same definitions, but that case shows there is a diference
Any suggestion about it?

Sorry for my bad english

 

Symantec updates more frequently. In fact, Symantec had SONAR quite a bit before Norton did. Also, Symantec Corporate comes with a slightly more advanced scan engine than NAV, and it basically gets all new engine features before NAV. So basically, corporate users get the cream of the crop and the rest get whats left.

 

Well.. So they have diferent definitions or not? or samply Norton updates after Symantec?
I also heard Symantec have better spyware remover tools, it's true?

 

The definition file for new version is the same, daily update, and there are definitions more frequent for other use. The problem you encounted maybe the time zone.
Corporate edition don't have sonar for there is a similar product for corporate users, I can't say symantec engine is advance than norton, it is optimized for corporate enviroment, and always get new feather later than familiy products except for intrution definition file update.
symantec antivirus added automatic spyware remove later than norton antivirus, its ability is the same or less without the veritas Symantec Real Time Storage Protection Component

 

Symantec AV for business users
Norton AV for home&home office users

 

As a Norton user , if you wish newer updates before they are delivered by your LiveUpdate , use Intelligent Update
http://securityresponse.symantec.com/avcenter/defs.download.html
http://securityresponse.symantec.com/avcenter/download/pages/US-N95.html

It is updated daily , AFAIK more frequently than LiveUpdate

 

In these links there is updates for 10 may, but symantec already have definition for 11 may