LabWindows/CVI locks up under Windows2000 when a menu ring is selected in my application.

[Roese]

I am running my application on a Windows2000 system. When I click on a menu ring to display the options, LabWindows locks up and can only be closed using the Windows Task Manager. The same application works fine on a Windows98 system.

[Jeremiah Cox]

Hello Roese,
All of the Windows 2000-CVI menubar/ring issues that I have seen have been fixed by upgrading to Windows 2000 Service Pack 2 or by disabling/changing the virus scanner software. If this does not work, then I would recommend testing in safe mode to see if it might be another application or driver. Testing on another Windows 2000 system would also help determine if the issue is related to your project or the specific system you were testing on. If the problem persists, please feel free to contact us at http://www.ni.com/ask >> E-Mail a Support Engineer.

Jeremiah Cox
Applications Engineer
National Instruments
http://www.ni.com/ask

[Edgar Jellum]

I am running LabWindows/CVI 5.5.1 on an IBM ThinkPad A21p. LabWindows wa installed on Win2000 SP1 but I have now upgraded to Win2000 SP2. I have also removed the virusscanner SW. Still I has problems with menubar-items. I have tested the "iconedit"-sample code that comes with the installation of CVI. When I click the menubar the iconedit-application hangs. The other functions in this application seems to work. This bug is a BIG problem for me because I am not able to run my existing LabWindows-applications. How can I proseed to get around this problem.

Edgar Jellum
Principal Scientist
ABB

[zener]

I know this is late, but I ran into that too. It seems to be an issue with Windows rather that CVI. I had to Multithread my do-while loops and any other "time dependent" stuff. That fixed it for me.