Why is 3dgraph loading as an empty container?

[GaryG]

I am running LabVIEW 6.1 on a Dell Dimension 8100 under Windows 2000. With a clean install of LabVIEW, I can use 3dgraph feature with no problem until I do a cold reboot of the computer and reload my LabVIEW VI - the 3dgraph shows up as an empty container. When this happens, the 3dgraphs in the example VIs are also loaded as empty containers. To re-enable use of the 3dgraph, I can do a software repair procedure with the LabVIEW disks. However, this is not a permanent fix, since the 3dgraphs become empty containers after subsequent cold reboots. This does not appear to be caused by video card problems - I've installed the latest Dell driver. This does not seem to be an activex problem - I have had no problems loading th
e CW 3dgraph into Microsoft Excel. Also, the *.ocx file is in the proper (windows/system) directory. I suspect there's something causing a corruption or memory leak in LabVIEW's interaction with the CW 3dgraph feature. I'd like to solve this problem because this feature would be very useful to me and I don't want to have to do a software repair every time I start up my computer.

[Cyril]

Gary,

I would try to unregister the cw3dgrph.ocx file:
Go to Start > Run,
and type "regsvr32 /u "

And register it again:
"regsvr32 "

In both cases, you will get a dialog box prompting you that your control has been unregistered or registered successfully respectively.

Hope that will help,

Regards,

Cyril Bouton
Applications Engineering
National Instruments

[GaryG]

Cyril,

Unfortunately, this doesn't seem to solve the problem. I unregistered and re-registered the .ocx file after encountering a blank container; this did not bring the 3dgraph back (within NI examples or my own VIs). Then I tried a software repair of LabVIEW 6.1 and unregistering/re-registering; this did not prevent the disappearance of the 3dgraphs once a cold re-boot was executed.