IDE :: Debug And Immediate Window?

I was running Visual Studio 2008 on my computer went through a whole VB progamming course with no problems. I recently had to have my computer hard drive erased and reloaded with windows xp to eliminate a virus. When I got it from the shop Visual Studio 2008 had not been backed up so I reinstalled the Professional edition from my disc. I opted fo the recommended installation. Every thing seems Ok except when I put a debug.Writelie (" Hello"} in the code nothing appears in the immediate window when it is executed. If I go to the immediate window and type the same line and hit return the string appears in the immediate window. If I assign a value to a variable in the program and put the debug.writeline command in the code module nothing appears in the immediate window, but if I go to the immediate window and type debug. writeline (var) and hit return the value of var apppears in the immediate window. i went to the debug menu and selected windows then clicked on immediate but it didn't highlight or show check mark. When the project builds after start debugging the immediate window appears. In the help it talks about a trace listener and insertig a line of code in the compile command line.