[NTG-context] What happened to \reference

I have started (after a hiatus) to compile my project again using an updated ConTeXt ConTeXt ver: 2008.03.03 00:34 MKII fmt: 2008.3.4 int: english/english and something that used to work has stopped working: \reference[logic:implicationprogram] {\getbuffer[logic:implicationprogram]} gives an empty result. This used to (say a year ago) get me the contents of the buffer I set up earlier. I tried the excursion, manual and wiki but only got very confused. In the past I must have concluded that this should work and apparantly it did. But rereading everything about \reference (wiki gives me many hits and I cannot find the right one) I get completely confused about what \reference exactly does with the second argument. G