After installing CUDA 5.0 (release) in a trial version of Visual Studio 2010, I can create, open and compile CUDA projects. However, I cannot debug because the Nsight menu does not appear. It would normally appear between the Team and Data menus.
How can I get the Nsight menu to appear? I have tried uninstalling and reinstalling the trial version. The computer is running an older Windows 7 install and has had Visual Studio 2008 and CUDA installed on it in the past.
Visual Studio with an open CUDA project, created with the CUDA wizard, but with no Nsight menu:

Update:
After reinstalling Visual Studio, some settings, like the list of recently opened projects, carry over from the old installation. Since the old settings could be part of the problem, I tried a more thorough uninstall, where I first uninstalled CUDA, then Visual Studio, then other NVIDIA software on the machine. Then, I removed Visual Studio and all NVIDIA folders from Program Files, Program Files (x86) and Application Data. Then I searched through the registry for "Visual Studio" "VisualStudio", NVIDIA and CUDA keys and removed everything I found. Then I reinstalled Visual Studio and CUDA 5. It didn't help. Actually, it got a bit worse, because I lost the syntax highlighting for the .cu files. Creating, opening and compiling projects still worked. So, I uninstalled CUDA 5 and installed CUDA 4.2.9. That "fixed" both issues.
