Making component use a different template than the default template

When I install my component on Joomla and create menu items for it then try to assign a different template to the pages that the component views are assigned to it doesn't change. It is still showing the default template. Can anyone tell me how to fix this, please?

I have not had this problem. I would suggest turning off SEF URLs however to make sure that the menu item links that you are clicking contain the ItemId in the URL. If not, then it will use the default template.

Thanks!