Umm.. so Oz slang has spread and even to TX, at least the Cactus call sign is dead too now with the merger or the guys at Dallas Fort Worth hub would've been unhappy i reckon if aware of the slang. Betcha didn't know about 'cactus rootus' though . No need to thank me for the 'wiki', i'm only too happy to educate you 'Yanks' [j/k Tex].

I'd reset the 255W and update it to V7.80, it'll be ok they're a tough unit. There's no 'clear nonvol' function available, but if you keep having trouble downgrade to a lower firmware which will force a more comprehensive reset. If it's HWID 0827 you can flash it to 465 to get LA, or Asian to additionally get JCV but TTS is not perfect.