I had no problems at all with ver5 however in ver 6 (201) I cannot use WaveRT and having to use Asio4all, which seems to bring in another problem.
I can use WaveRT or ASIO4all in Mixcraft 5, again with no apparent problems, but in Mixcraft 6 after editing, playing or recording after a few minutes the audio starts to breakup. Only solution is to close Mixcraft and restart.
I am using Vista 64, I7 processor with 4 Gb memory. The CPU is running at around 8% and system at 4% with 11 tracks of audio. Have a Realtek HD Audio soundcard with the latest drivers.
Really annoying that it still works great in Mixcraft 5 but I would like to try WaveRT in 6.201 to see if ASIO is the problem.
Welcome any ideas where to start and look.