Uncontrolled expansion of a system slide control

I have two system slide controls (part of a larger cluster) that are getting longer by a few pixels every so often without me touching them on the front panel. I don't know what this is correlated to (i.e. opening the .vi, running the .vi, etc.) but these slides are now running into the space for other controls and even their own digital displays. My program does not change the position or sizing of these controls, however I do occasionally write to them through local variables and value references.
After noticing this issue, I tried programmatically keeping them down to size however there is an issue with this. When the slide controls start to grow, their scales remain in place so there is a bit of a mismatch between the position on the scale and the corresponding label. When I reduce the size by hand, or in the program, the scale similarly moves thus preserving this mismatch between the slide position and the label position.
The only fix I have found deleting the control and putting in a brand new one. This is obviously not a tenable solution. Does anyone have any ideas? For reference, I'm using LabView 8.5 on the Mac but I had this problem with version 8.2 as well.
Thanks!

johnsold / Lynn
The slider control is within a cluster that is indeed a typedef from a custom control, yes. However, I noticed this behavior in slider controls belonging to clusters that are not deposited from a custom control. I have never found this expansion to occur in slide controls that were standalone variables.
I have included a .vi. that has the cluster of interest -- it would be difficult to include the cluster as part of the offending program. I should mention that this slide expansion does not occur when the program is running, or even when the .vi is in memory. I only notice this when LabView boots up and the .vi is first loaded. In looking at this cluster now, the slide controls have expanded more than 10px on both ends. Interestingly, i just noticed that they are getting taller too. The scale on the bottom cluster is now starting to be clipped by the boundary of the cluster itself.
Any insight would be a great help.
Attachments:
VI Cluster with Slider.vi ‏13 KB

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Attachments:
Hang Slider.rtf ‏683 KB

Thanks for all your responses, and especially to those who are waggling their mice around trying to reproduce this. I'll respond to (most aspects of) the last several posts in one message.
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I'll see if I can get the original code to post in a separate message, I posted the .rtf originally because I thought there might be filtering on forum posts (I'm sort of new here). But I doubt you re-created it wrong.
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"Cy" wrote in message
news:[email protected]..
> I would like to create a pop-up window appear from Labview Interface.
> In this window, I will have a slide control and an image taken from a
> camera. The main VI hav
e to run while pop-up window is open. How can I
> do ?
>
> When I pushed a button, this pop-up window has to appear. There will
> be a slide control and a picture from a camera in this window. Is it
> possible to make appear this windows while main VI Interface continue
> to run ? How can I do this ? Thank you for your answers.
> Cyril.
[Attachment SliderMain.vi, see below]
[Attachment Slider.vi, see below]
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SliderMain.vi ‏16 KB
Slider.vi ‏11 KB

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Mike200 wrote:
Hello again, i am experimenting with the 'slide control'. In the example I’m looking at there is a slider control which updates a numerical label immediately to the left of the slider on the main view (I’m sure you've all seen this before). It’s part of another newbie iphone program taken from another book, and one particular line of code is confusing me. It's within the slider action method, and within this list of commands is some kind of cast command? I understand how casting works with commands like
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