Hi wpaisley,
Unfortunately it does appear that many GPs are not clued up about diabetes and its treatment. This is surprising when you consider that there is currently what is generally described as a diabetes epidemic. There are many excellent GPs out there who keep themselves up to date on new meds on the market, read the NICE guidelines and the BNF guidelines. Unfortunately there are equal numbers of GPs who do none of these. We have even had reports from forum contributors of GPs who were unaware that diabetes could be treated with anything other than insulin!
Of course, you could attempt to educate your GP yourself. Think of it as your personal challenge!