On occasion, some software will conflict with other software, and there won't be much you can do about it... it happens with OD+ and a couple of apps I run. [not the same issue as you though]
As you probably already know, you can save the way you've set up your docks in OD+ ...so, if you're going to run a game that you know conflicts with OD+ just make sure you've saved your theme, and close out of OD+ until you stop playing.
It's what I do when running the apps I know have a conflict with OD+
I'm not usually using the dock when using the other apps anyway, so it isn't a bother to me.
Sorry I could'nt help more than that.
Hope you get it sorted to your liking though. OD+ is a wonderful tool

[admins might want to flick this over to it's correct category, but.

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