St. Clair Software today announced the availability of Default Folder X 4.0.1 (US$34.95), which boosts the speed, compatibility and polish of its award-winning utility for enhancing Open and Save dialogs. Version 4.0.1 offers significant speed enhancements and improved stability, especially if you use Mac OS 10.4 or work with large files. It also adds an option to use a non-HUD-style user interface, and offers usability refinements in all areas, from tweaks in the translucent interface to ensuring that Default Folder X enables easy navigation with the keyboard.