Not valid Windows CE application

Not valid Windows CE application

I wonder if anyone can help. 
On a couple of wt3235le terminals using the built in browser we get the following after typing the URL for google.co.uk
You have chosen to download a file from this location then says

[ ] Open this file from it current location
[ ] Save this file to disk.

Click ok, that then comes up with:- Google [1] is not a valid Windows CE application. 

Other addresses are fine, bing, yahoo and so on. It just seems to be google. Nothing has changed on the terminals... any idea what I need to look into?
Many thanks