Question about compile

The steps I open, run and compile my model were shown at P1-P6. When asked to compile my model as P6, I pressed the OK button, but nothing happened. When I selected build menu->Open Visual Studio…, nothing happened too. When opening other models I also met same problem.
Who can tell me why? Thanks a lot!
My flexsim version is 5.0.4, my sys is Win7 64bit with Visual Studio 2008 9.0.3079.1 SP.

Have you set up the "Compiler" tab options under File->Global Preferences gui?

Jason, thanks!
I have set up the ” Global Preferences gui”. But in Flexsim Chinese version, compiled past, then Clock overflow error showed. What is “Clock overflow”? In Flexsim English version, compile errors showed. How about these?
The model had made in Flexsim Chinese old version such as 3.0 or 4.5.