Weird message from Google

This just started happening recently.
Does anyone get this message?

Our systems have detected unusual traffic from your computer network. Please try your request again later. Why did this happen?

This page appears when Google automatically detects requests coming from your computer network which appear to be in violation of the Terms of Service. The block will expire shortly after those requests stop.

This traffic may have been sent by malicious software, a browser plug-in, or a script that sends automated requests. If you share your network connection, ask your administrator for help — a different computer using the same IP address may be responsible. Learn more

Sometimes you may see this page if you are using advanced terms that robots are known to use, or sending requests very quickly.

This page appears when Google automatically detects requests coming from your computer network which appear to be in violation of the Terms of Service. The block will expire shortly after those requests stop.

This traffic may have been sent by malicious software, a browser plug-in, or a script that sends automated requests. If you share your network connection, ask your administrator for help — a different computer using the same IP address may be responsible. Learn more

Sometimes you may see this page if you are using advanced terms that robots are known to use, or sending requests very quickly.


I'm using Win7 Pro 64bit, Firefox 3.6.12


Thanks

A

" I'm using Windows 7 Pro 64bit, Firefox 3.6.12
Thanks
A"

I'm not on a network.
This is a single computer at home.

A

I use Avast and SuperAntiSpyware Pro.

When I go into Control Panel>Networking and Sharing I see that I had set up the computer "Work Network".

However that was a year ago and this just started happening.

Maybe scanning for Spyware and Viruses is in order.

A

kword88 said:

are you using a wireless router? if so , you may need to enable security. anyone within your broadcast range can pick up your signal and connect to the internet through your router if security isnt enabled.

Yes I'm using a wireless router.
The security settings are: WPA-PSK (Wi-Fi Protected Access Pre-Shared Key) and it has a very long password which I have the router randomly generate.

A