A tool-switching panel disappears, when a dialog is displayed.

Question

We are currently developing the plug-in of Adobe Illustrator CS6.
Our CS6 Plug-in displays a modal dialog in tool selection.
Modal dialog appears when I change tools, and the tool-switching panel disappears.
I do not want to display a modal dialog on changing tool.
In the case of CS5, such a thing does not occur.
Do you have any solution?

Answer 1

After a bunch of grumbling, head-scratching, research, and experimentation, I identified a solution that works for us.
The consistent condition for users with this problem was that they had Acrobat (any version, near as we can tell) installed.  The browser used the Acrobat print dialog to print .pdf, and that dialog is the one that doesn't work.  Those who had only Adobe Reader were OK, since its print dialog worked.
The fix is to make the browser use Reader to process pdfs rather than Acrobat, and the Reader print dialog works great.
In the cases where no Reader was installed (only Acrobat), we installed it, and the Reader install reconfigured the browser to use the Reader with pdfs, instead of Acrobat.  The Reader install also makes itself the default application for all the standard pdf file types.  We initially thought, where both Reader and Acrobat were already installed, we could just re-associate the files with Reader and that would also correct the browser behavior.  But the browser explicitly associates an application with a file type, and does not rely on the computer associations to make that determination.
Unfortunately, we weren't able to figure out how to manually change that for IE 10 or 11.  Probably a registry hack for that, but we're not terribly interested in going there.  So, if the computer already had both Acrobat and Reader installed, we just removed and reinstalled Reader.  Presto, browser uses Reader and printing is fixed.
Of course, the down side is that after a Reader install, double-clicking a pdf file will bring up Reader, not Acrobat.  We told Acrobat users to run Acrobat first and use File/Open, or to right-click the file and use Open with.  If they want to play around with the file associations themselves, well, that's up to them.
TSN, thanks for the response.