I've actually been screwing with this lately. Those dern echoes have made me brown with annoyance! I will get them one day...
All revenge plots aside, lets see if I can help...
In the Channel settings of your preferred instrument, you should see a tab at the top that says FUNC. In theh FUNC window, in the bottom left side abouve the onscreen keyboard you should see a square with the title "Time". Inside should be two knobs. GAT and OFS. The OFS knob should be put all the way to the right. The GAT knob can be set anywhere inbetween the top and far left. It should look like this:
And that's it! If it doesn't work, I'm genuinely sorry, or as sorry as a nihilist can be.
EDIT: It's kind of strange though. The only time I have this problem is when I use the steps, not the piano roll. Hmmm...