VC++2008 Debugger doesn't find library sources

An exception got thrown from a lib I use in my project. As I looked at the callstack, I clicked at the lib function that threw the exception. An "Open File" dialog popped up, prompting me to tell it where the lib source is located. Now clearly something is wrong. This should happen automatically somehow. How do I tell VS where to look for all files fro开发者_如何学编程m that lib?

The answer: you just need to use the dialog that pops up. Do tell it where to find this particular file and henceforth it will always look there for any file belonging to that lib. Nice.