I've unloaded all plugins except the following:
mq2docrack, mq2ghost, mq2eqbugfix, mq2chatwnd, mq2bzsrch, mq2map, mq2custombinds, mq2itemdisplay & mq2labels
I then tried each of the 3 plugins in turn:
mq2rwarp, can add waypoints, but warp doesn't work.
unloaded that then onto next plugin...