When clicking to quickly while previewing sounds (for example letting a sound preview while selecting the next one) Gigastudio will crash and the mouse pointer becomes an hourglass indefinitely. At this point Ctrl-Alt-Del in necessary.
I am wondering if anyone else has noticed this behaivor. If not then it has to do with my machine and I will continue to try to find a solution. I don't think Tascam would have left a major bug like this in the software this long.