All I use it for is creating slideshows for a children's charity I volunteer for
Take also a look at VegasMovieStudio 16, is probably more than sufficient for your purpose and it is also affordable. At least you could try a 30 day free trial and see if it fulfills your needs and solves your issue.
Of course when I say VegasMovieStudio, I always mean the Platinum version. I would never recommend the stripped version.
I and most regular users know that of course and agree, but this is the first post from a new forum member and he may not know. We're having too many disappointed users of the basic version asking here for advise to get refunded / change their version. And as you say, definitely "try before you buy".
Personally I was never able to solve the Kernelbase issue of Vegas Pro 10 b 738 64-bit. Reinstalling helped only when opening the program the first time. Further attempts failed. Are you able to try build 737 32-bit? I just installed it to test and it seems to work.