Please can anyone shed any light on, and help resolve this very serious problem...
Some time ago, at our company, we had noticed that some PC machines were exhibiting corrupted front panel object graphics in LabVIEW - shading appears speckled/mottled, and moving windows around leaves trails of lines from overlaying windows, and from objects being moved over other object whilst editing the front panel.
Close examination shows that the corrupted graphics only affect the "3D effect" front panel objects that were introduced back at LV 6i - I've attached an example cut from a screen dump zoomed to 200% so the problem is clear to see.
At the same time it became apparent that there was also a very big performance hit occurring on those machines that exhibit the corrupted graphics problem.
The problem affects all three versions of LabVIEW that I have installed (7.0, 7.1 and 8.0) - and the problem is apparent on several machines, but not all machines.
More recently I discovered that the colour box representation of 24 bit colour codes is also faulty, which I strongly suspect is related to the 3D graphics shading problem. It almost looks as if the 24 bit colour is like 8 bit colour - except the thresholds are not even evenly distributed.
Today I completely uninstalled everything of National Instruments' from my main office PC, and have so far re-installed only LabVIEW 7.0 - unfortunately, the 3D effects graphics corruption is still occuring.
Big clue: Until some months ago my main PC was clear of this problem, then there was an bug with OS SMS updates (a bit like Microsoft Update but company server controlled) repeating themselves. The problem with the OS SMS updates was fixed by reinstalling parts of Microsoft Office and then installing the latest updates direct from Microsoft - then suddenly my PC now had the same LabVIEW 3D graphics corruption that we see on other machines.
We have reported this problem to NI support in the UK, and have also shown it to visiting NI sales/support engineers, but there has been no resolution forthcoming.
I've also seen occasional reports on the NI forums that seem to be the same problem, although but they are few and far between...
...any help or insight, that can get this problem fixed, would be appreciated.
Mark H.
P.S.
Obvious thoughts like checking the "Display Settings", modes and colour bit depths and graphics card driver updates have been checked and experimented with a long time ago with no success.
