My font panel wont fully update with smooth updates on

[NIDave]

My VI has ben working for months now and now it wont update a random size lower portion of the front panel.  If I turn smooth updates off it seems to work better.  Also I notice that the slider bars in the scroll bars are not visible until I scroll (using the wheel which works) away from the main front panel.  If I scroll up it locks labview and takes 97-99% of my CPU and hangs indefinately.

Thinking the VI got corrupt I copied the entire block diagram and pasted that into a new vi ad saved it.  The block diagram looks fine but when I try to find any of the indicators or controls on the fron tpanel they are not there.  Also when I load the file a get an error that says that scalesup.cpp is messed up.  (Ill attach the dialog box picture below.)

Finally I decided to create a copy of the odd VI and delete everything on it and create a simple program to control a LED.  This VI acts the same way in that you have no slider bars in the scroll bars and it will lock up on refreshing when you try to scroll around the front panel.  Interestingly enough the two programs run fine even though you may not be able to see the front panel. 

Ill attach the other VI too and see if that problem can be replicated.

Thanks in advance for all the help.

-Dave

Oh yeah if I build an executable it runs and I get the same behavior with the lack of proper redrawing of the front panel.

[TheDillo]

I can't even open your VI all the way.  I was able to see your block diagram.  I would suggest trying to redo your VI starting fresh (don't copy/paste) and incrementally saving and test your vi.  Usually error 7 has to do with the Report Generation Toolkit - is that anywhere in your project?

[NIDave]

Thats weird, it opens for me but try to scroll and its all over.  I think something in the header or wherever the screen size and scroll position information is stored got corrupted.  I don't use report generation toolkit anywhere so rule that out.  Unfortunately this VI was a few months (on and off) in the making so I wasnt too anxious to redo it.  However I copied pieces of it over incrementally and that seems to have worked.  I figured divide and conquer and find the culprit however once divided and reassembled there is no culprit.  I wish I knew but as long as it doesnt happen again I'll live. 

Thanks for your help.