We have been informed by some users that our toolbars (D.LOFT, LITE, PRO) would not remember their last location or open/closed status. Supposedly this is Windows preventing the toolbar file being saved when closing Rhino.
The workaround is to check the properties of the EvoluteTools installation folder and “take ownership” of that folder. Additional help can be found on the Microsoft website, search for “take ownership folder”. If the issue persists, please post here.