It maybe that the bubble colour you have selected is not printing because printing of the layer containing this colour is switched off. Layers and their management is much more sophisticated and useful in Corel 9 than it was in Corel 4. I have had to learn this as well as I have similarly graduated from 4 to 9 and it is indeed a whole lot different! If you haven't got the layers schematic displayed on the RHS of your screen then it's tools-object manager. Check the layers that you have and check what does what by clicking on the eye symbol of each layer to turn it off and see what disappears. Click again to restore a view of the layer. Then check the printer symbol. I suspect that it may be greyed out on the layer which gives you the colour you need. One click here and you should have the print out you require.
Well I hope that it IS that easy, but with the appropriate layers selected to be seen and to print as well, then WYSIWYG!.
P.P.