Did this use to be an issue to someone here too ? I searched SO but could not find any posts that really helped me.
Some told me to press Ctrl+Space after inserting a 'dot', which is not what I would like to get. Razor used to work fine once I tested it with VS10.
[updated] it is Ctrl+Space
Intellisense does work in VS2012 with Razor. I've had problems before were visual studio will stop doing Intellisense. Usually a restart of visual studio will fix it for me.