WiFi failure - Gingerbread - reset done

Hi

I'm stumped. I've read about WiFi failures under ICS but I'm still running Gingerbread.

WiFi turns on for 15 seconds and then turns off. In that time, no networks are found.

I've completed a factory reset but the problem persists. Phone is 14 months old and has only shown this problem in the last week or two.

Is this likely to be hardware after all.

Any help appreciated.