The symptoms so far include showing the Google/Yahoo boxes and an odd error message indicating some sort of bad return from an IP in the [10.*.*.*] range. My IP knowledge is rusty: is that a private range?
At the moment, we have three search servers: maurus (10.0.0.16), vincent (10.0.0.17) and coronelli (10.0.0.230).
Do we have to expose this detail to non-technical users? The above user clearly knew a fair bit about IPs, and the message was still meaningless to them; imagine what an average non-technical user might think.
Timwi