Hello all,
I use TrueHDR quite frequently for work and play, and it began to quit after taking just one of the three pics it uses to merge. emailing tech support they explained that it is probably due to too many apps running in the background, and that I should double tap the home button and x out of the programs which are running, but not using. These are shown at the bottom of the screen. I was quite surprised by how many were running, and I hadn't used them in weeks.
I quit a few, and haven't had a problem since. The phone itself seems to have much less lag too.
Cheers.