Compaq Workstation 420 Dual CPU. NVidia 32M GeForce2 GTS This problem did not exist under Carrara Studio 1.0 or 1.1 When I am in the assemble room, changes to attributes in the properties panel are immediate. The problem is only in the Model room. And only when using the vertex modeller. Also, if you highlight a polygon of four vertices then the properties window displays quadrilateral subpanel but all the coordinates are 0.00 There is definately a bug in the software if it only malfunctions in one type of modeller. I emailled a bug report to eovia. Hopefully they will investigate the problem. If anyone else has an idea, please let me know how to make this important to eovia. The new registration route for carrara makes it troublesome to uninstall 2.0 and reinstall 1.1 but I may have no choice. We carrara users appear to be few here at renderosity. I shall personal address this issue, possibly in the magazine.....