When I take off my PSS A319/A320/A321 with cfm-engines with the default PSS sound-file the plane accelerates up to about 80-100 kts., then the FS9 gets frozen or crashes down to black screen or restarts the PC itself. What can be the reason for that phenomene. With another sound-file e.g. from Des Braban nothing happens, the plane starts quite normal. Thanks for help.RegardsPeter