Mandriva Spring 2007.1, HP Pavilion ze 5700, Ram 512Mb.

I took a load of digital photos today and decided to make some thumbnail images using the OpenOffice application Writer.
I dragged the images from Konqueror to the Writer window and for the most part everything was ok. I managed to arranged a number of images in a grid - as a contact print of old.

However, any files below 4Mb appeared as Black i.e. no image at all, yet they could be viewed in Konqueror. Files above 4Mb ALWAYS displayed correctly with some as large as 6.4Mb.

Can anyone suggest a reason for this?

Thanks in advance,

Tony Littlejohn