[NTG-context] Problem with wiki example

I found following on Wiki to produce PDF out of standalone type( https://wiki.contextgarden.net/Sharing_graphics): \starttext \startMPpage draw fullcircle scaled 10cm ; \stopMPPage \stoptext It generates a PDF but when I open it with Evince, Evince complains that no page was found and does not show anything. Any help would be much appreciated. -- Respect, Shiv Shankar Dayal