Quartus II 7.1 - SOPC Builder New Component

I have had exactly the same problem. I made a modified DMA component (with variable increment, and wrap to make a circular buffer), which works fine in 7.0, but in 7.1 I get the outside range (0x0..0x1) error. I have no idea what some of the interface properties do (such as 'addressGroup'), and I can find no reference to a complete list of interface properties and what they mean. The Quartus manual, section 6, 'Building a Component Interface with TCL commands' offers very little information, and is missing interface definitions that appear in the generated _hw.tcl files. Can anyone help by pointing at a document that lists the interface properties. And also how to overcome this address range problem. Thanks!