VS 2005 intellisense problem

I do not know where to post this question. i hope this is the right place.

I recently installed VS 2005 on a brand new dell with Vista on it.

I am having issues with the future "Options to Implement Interface (Shift +
alt + f10)" which is shown when you are deriving from an interface.
For example:

try follwing: class UserArrayList<T> : IList<T> {}

The option shows up when i put my cursor over the IList<T> statement but
when i click on the down arraow nothing happens it just disappears.
its very annoying. can someone help please.
Everything else works fine, including autocomplete and intellisense.

thanks