I'm using sidetrack from very first days it's available, and was very happy with it.
But recently (maybe after 10.4.8 update or even earlier) I have discovered, that for some reason, sidetrack creates problem with my Laptop sleep mode.
Uninstalling side track resolves the problem. When I reinstall it - problem repeats.
It seems, that lot of people has similar problem with there laptops sleeping mode. I suggest to uninstall sidetrack to see if this resolves the slipping mode problem.
If developers may isolate the issue - I will be happy to continue to use of side track - I really like it.