[sentinix-list] nessus ?

Hi,

I downloaded, installed and set up Sentinix 0.70.50 last week.
After that I started a scaning of our network using Nessus. Following
it, all our computers have been infected by the Gaobot virus one after 
another !!! It may just be a coincidence but there may anyway be
a relationship between the infection and the scan of our computers.
Do you have an explaination for that ? Did this happen previously ??

I must say that now I hesitate to use/recommend your product, although
I considered it well-suited to our purpose....

Thanks in advance for you answer !

Best regards,