Blank block diagram in Labview 8

[Kenny_K]

I have a strange problem where every once in a while I will open a VI in LabVIEW 8 and the block diagram will be completly blank, even though there is a number of cases/items on the block diagram.  I recently upgraded from 7.1.1 to 8.0.  It seems that once one block diagram goes blank, then all my block diagrams created in 8.0 go blank.  And then usually I can restart and it will be fixed, but this is a pain and it doesnt always work.  I thought that maybe it was my display driver, so I updated it and I still have the same problem  Even when I can't view a block diagram in 8.0, I can run a VI created in 7.1.1 and 8.0 will recomilpe it and display the front panel and block diagram fine.

I do not know if this is related, but I also have trouble maximizing VIs in 8.0.  I will open a VI and it will automatically minimize to the taskbar.  I will click on the VI on the taskbar and it will flash like it is going to maximize and then it never does.  If I rright click on the icon in the taskbar and select maximize, again nothing will happen.  I then have to right click again and minimize the window, and then I can right click AGAIN and hit maximize to finally view the VI.

Are these bugs with 8.0 or are these just quirks I was lucky enough to find.....I have attached screen shots of the front panel and a block diagram.to show what I am seeing. ( I know that they are screen shots of 2 different files, but the same thing happens in both/any VI created in 😎  I ahave also attached a non working VI, but one that illustrates my point, at least on my computer.

My computer is XP with an ATI X300 PCI-X video card, 3.4 GHZ P4 and 512 ram, so it should not be my computer holding me back....

Thanks for your input.

[altenbach]

From the scrollbars of the block diagram it seems that you're just panned way off center and the code is outside your current window margins.

Try to enable the navigation window (Ctrl+shift+N) to see where the code is located.

[Khalid]

I just opened your 'Mitutoyo' VI and indeed the diagram is there .. but way off the screen!  Not sure how it went there, but to get to it quickly, right-click any front-panel control and select Find Terminal. 

-Khalid

[altenbach]

It is difficult to imagine how this can happen, but here's a way to reproduce it. Could it be you did something similar?

1. Place an extra object on the block diagram next to your code
2. Select it and move it way offscreen (e.g. using shift+left-arrow )
3. Scroll left to bring it back into view
4. Delete the object
5. Save the VI.