iPreview and Windows 10

Dear All,

I have a strange delay when running a program on Windows 10 machines.

I have a Dialog box which gives the user the option to 1) print a report, 2 ) save the report as a pdf, or 3) to preview it. When option 3 is selected the preview window opens.

When the program is running on a Windows 10 machine, after the preview window is closed it takes about 15 seconds before control is passed back to the program. During this time you have to sit and wait as no amount of clicking does anything.

This only seems to happen with Windows 10, as the program operates normally when running on Windows 7.

The code behind the Preview button is shown below:

	// View Preview
	CASE 3
		iParameterPreview(iButtonPrinter + iButtonPdf)
		iPreview(93)
		iPrintReport(RPT_DangGoodsLands)

Am I doing something wrong, or has anyone else experienced this?

TIA,
Robin.