I've heard that WB 3.5 fixed the bugs and really improved the product. unfortunate for those of us that payed into WB3 wanting a working product. mine will not even run or install without files that were emailed to me, CD Distribution Error not me. upgrade to WB3.5 was expensive, more than buying Vue NEW or Bryce 5 NEW for an upgrade! If you use Max or Lightwave you need to buy the plugins which is an additional charge because they are by a 3rd party vendor BUT the plugins ONLY work with WB PRO not Standard. So if you want WB 3.5 pro and lightwave or max plugin your looking at about $1200 usa. Sorry that's what I payed for Lightwave itself no thanks. OH and WB Standard users? They can not upgrade from Standard to Pro version. You have to buy the program again and buy the PRO version this time. Digital Elements was 'thinkin' about changing this policy when I last spoke to them but no decision had been made. I'm all for free versions. I may even try the Free version of WB 2.3 since my wb 3.2 is useless (I'm not just saying that, it crashes and has so many problems that DE's solution was for me to upgrade that was their only sugjestion $200 fix).