Corel's V10.02 updater for Paint Shop Pro X (a 20.4MB download) minimises the browser when opening a file (as PSP 9 does) and is said to add Raw support for six further cameras and fix a wide range of bugs.
New Raw support is for the Canon Kiss n; Nikon D50 and D70s; and Konica-Minolta Maxxum 7D and Dynax 5D and 7D.
As with earlier versions of PSP, it's also now possible to drag and drop thumbnails from the browser into folders in the file tree.
For details of the long list of improvements and fixes (and a download link), see the V10.02 release notes.