VW 2009 was propbably the last most stable version maybe even 2008. Since then 2010 & 2011 has produced more problems for our office than productive hours, well so it seems, especially callout notes & windoor. Even clicking on the windoor tool randomly crashes vectorworks for us not to mention the text tool hopping & skipping around the page, also when you create some text & start typing it automatically exists the text box so you end up typing nothing unless you check the screen every time you type a word to re enter the text box. Rendering was a lot faster with Renderworks than it is with the new engine, I have done tests with 2010 & 2011 side by side with identical imacs. renderworks Yes it looks slightly better, however all custom textures suxh as glass & water for swimming pools etc also cladding textures are usless in 2011 & need to be recreated. It just seems to be a big fat waste of time upgrading, what was wrong with the previous versions (2009), seems to be too much thought going into some of these upgrades, the software Engineers are trying to get to clever & end up costing offices such as ours thousands of dollars in time dealing with all these problems that new versions give us. Seriously thinking of down grading to 2009 would be much more productive unless they can start releasing verions with bug free software.