John,
Are you loading the full DNN source project when developing your module?
I use the methods found at http://vladan.strigo.net/projects/blankmodule-dnn-dev.-enviroment-setup-for-visual-studio-2005/ and use VS Source Safe mainly as a backup to my code but this allows me check in from my desktop and check out to my laptop if I need to take code with me.
I also find VS2008 very sloooow to compile. It even seems to hang for moments when I am typing code. I assume doing background compile/syntax checking. It seems a fast machine is no longer adequate[:(]
I wonder can a lot of the background stuff be turned off and just let us get on with typing code then let the compiler find the syntax errors at compile time? I must check this out..