Default Wifi Problem

Took my G1 apart today to fit a new touch screen all went well put it back together all seemed fine everything worked.

Well all except the wifi, i turn it on and recieve the message "unable to start wifi" so i opened it back up checked all the wires etc all seems good as everything else works fine.

Have i some how killed my wifi?

i've tried another rom just in case but made no differene at all

also is this the wifi board?