Just to let everyone know , so they don't need to search
Had some problems today , the preview screen was not showing effects while adjusting
When I do adjustments , like PIP , it doesn't show on the screen , and when I close the fx window ,it pops up and I can see what I have altered
Also , when rendering, there was no render preview , only a static image
Tried a lot of things , reset of Vegas and so on
suddeny I remembered the notification of the NVidia driver update last night, I did the update
So I did a rollback , Everything is working again ;-)
I thought you guy's would like to know