I have Visual Studio 2005 set up to use Microsoft\'s symbol servers. I also have UltraMon installed, which injects a hook DLL into every process. Whenever I start debugging
Not only the _NT_SYMBOL_PATH can cause this behavior, but for me it was the _NT_ALT_SYMBOL_PATH environment variable that was causing the delays.
_NT_SYMBOL_PATH
_NT_ALT_SYMBOL_PATH
(I believe I added this variable when experimenting with WinDbg)