If there is any compatability issue you will get a crash and a slightly helpful dump that can often indicate where the problem is.
The bouncing icon i think is common problem in 10.3 when an app is moved or rennamed and the shortcut nolonger works, bmk was fixed last year to generate slightly more portable apps that didn't get lost quite so easily.
The bouncing icon i think is common problem in 10.3 when an app is moved or rennamed and the shortcut nolonger works, bmk was fixed last year to generate slightly more portable apps that didn't get lost quite so easily.