OS: Windows 7 - 64bit
When opening a large image file from a slow medium (e.g. network drive), XnView is unresponsive and in the title bar it even shows "Not responding".
Effect: Irritating program state; XnView seems to hang although it's still active.
To reproduce:
1. Download and unzip the attached BMP file (300 MB, 10.000 x 10.000 pixel image in BMP format) and store it on your slowest medium (e.g. network or USB drive).
2. Start XnView, browse the folder with the BMP file. Double click to open the BMP file.
Actual behaviour (bug): XnView does not respond in any way until it has loaded and displayed the image.

Expected behaviour: XnView should display a wait cursor and remain responsive.