Visual studio debugger hangs while loading symbols for my application(native IA64), SP1 is installed. This started to occur, after i install debugging tools for windows(64 bit version), and reboot my computer. This issue is not depend on my project, even with new project debugger hangs. 

**UPDATE:**
When i try to attach to the running process, the same situation repeats. Visual studio hangs while loading symbols(for kernell32.dll)