[NTG-context] What has happened to externalfigure command?

Hi, I'm struggling to get an older ConTeXt file that worked well under TeXLive 2008, but not any more with ConTeXt minimals! I've installed the ConTeXt minimals (Mark IV!) (MTXrun | current version: 2010.07.30 11:35) recently. I've a file someplot.1 in a directory called /home/somewhere. The ConTeXt source file contains the command: \setupexternalfigures [directory={/home/somewhere}] in the preamble. The image file is called using: \leftaligned{\externalfigure[someplot.1][scale=100]} But no image is presented in the generated pdf-file! However, all jpg-type of images that I use in the document - using similar commands - are all rendered correctly! What's wrong? Anybody any idea? Regards, Gerard Verhaag