I am using LabWindows CVI version 8.1.0. When I set a breakpoint and run the debugger the program will stop at the breakpoint, but when I click on "GO" CVI crashes. I can't get back to my application window. I can switch back and forth between the project window and the source code window but the project window doesn't work right. Clicking the "x" in the upper right corner of the window just gives me the Microsoft error message "Program not responding". On the same computer I also have an older copy of LabWindows CVI version 6.0.0 which behaves exactly the same. What happened and how do I fix it?