This isn't a query, it's the solution to an issue I couldn't find from googling, just in case it helps anyone else..

When running my reports in Crystal Reports they've been fine, but when some users were running them in the viewer they've been receiving this error (below), only for specific reports though while others were fine. The error isn't very helpful, especially that it says 'The operation completed successfully'. :) However I've got to the bottom of it, finally, probably no-one else would do this but I'd set the report page size to 500 inches square for reports which we're exporting as Data Only, thinking it wouldn't matter what it was set to for these and it would make a big enough page size that every report would display on a single page, but it seems like this is too large for viewer users even though it's fine in the full package, I've resized the page to 75 inches, and now the reports run fine on the users PCs.

Unhandled expection error when running CCM card details reports, details of error:

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.ComponentModel.Win32Exception: The operation completed successfully
   at System.Drawing.BufferedGraphicsContext.CreateCompatibleDIB(IntPtr hdc, IntPtr hpal, Int32 ulWidth, Int32 ulHeight, IntPtr& ppvBits)
   at System.Drawing.BufferedGraphicsContext.CreateBuffer(IntPtr src, Int32 offsetX, Int32 offsetY, Int32 width, Int32 height)
   at System.Drawing.BufferedGraphicsContext.AllocBuffer(Graphics targetGraphics, IntPtr targetDC, Rectangle targetRectangle)
   at System.Drawing.BufferedGraphicsContext.AllocBufferInTempManager(Graphics targetGraphics, IntPtr targetDC, Rectangle targetRectangle)
   at System.Drawing.BufferedGraphicsContext.Allocate(IntPtr targetDC, Rectangle targetRectangle)
   at System.Windows.Forms.Control.WmPaint(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ContainerControl.WndProc(Message& m)
   at System.Windows.Forms.UserControl.WndProc(Message& m)
   at CrystalDecisions.Windows.Forms.PageControl.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)