Jseal,

I must commend you, you know more about the Australian Constitution than most Australians.

You are correct in that the Queen has the power to disallow laws and this is there to prevent a dictatorship or unconstitutional laws.

It has never been used and it is a precendent that the Governor General and the Queen accepts the advice of the Prime Minister of the day.

I do not know the actual words used when a successful Prime minister approaches the Governor General and presents his credentials.

Messrs. Howard and Blair then presented their credentials to their respective heads of state, who prudently entrusted the governance of the countries to the parties whose policies most closely matched those of the citizens.

I would think that Bilbo disagrees with "parties whose policies most closely matched those of the citizens"

I believe that the incoming Prime Minister informs the GG that he is able to form a government. (This would mean that the Goverment would command control of the parliament because they had the numbers to do so)

The constitution is not as simple as it seems and disputes on it are settled by the full bench of the High Court of Australia.