Problems were mostly with lagging, stopping. Clips on the timeline would not be selectable then selected another clip to then go back and select the most recent.
Also had migrating of titles, effects without ever knowing why.
I have solved all these problems and now everything works very well. PD9 now is a wonderful tool at a very good price. It will take me a long time to learn all the wonderful and powerful editing options! Most of my time is spent discovering all its features as I create my videos. Happy camper me! Aso, I now know it was not PD9 creating my problems.
The solution: Re-installed my Operating System, Windows 7 Professional, 64 bit.
Now I am adding back my other software one at a time and then go back and check PD9 is functioning well. Not a single problem yet. EVGA (132-BL-E758-TR) X58 ATX
Intel i7 920 Quad Core
Win 7 Prof, 64 bit
NVIDIA GEFORCE GTX 285, 1GB
12GB SDRAM DDR3 1600.
Canon Vixia HF S21 (AVCHD)