Versions 3.1 and newer (3.1, 3.1.1., and 3.1.2) frequently produce empty files and occassionally change dates and times of files transferred when using the Reload button or double-clicking a previous transfer in the Transfers window. Double-clicking selected files in the main window also frequently doesn't work. Transferring files from Unix system to Intel Mac running OS X 10.5.6. However, dragging the selected files from the main window seems to work reliably. None of these problems were observed when using version 3.0.3. It seems that an error has been introduced in version 3.1.