Have you tried uninstalling it? If not make a backup of the skins folder, uninstall OD+ then use CCleaner to clean up any left over files. Then install it again and see if the problem persists.

@Uvah, I have not done an uninstall but I can try that at some point.  @Zuabz (and by the way, I'm using one of your blinds as I type) lately it's been with IE but I couldn't say for sure if it's only ever been IE.  I mostly use Chrome but IE is still useful for some things.  Actually I have verey few program icons in my bottom dock, mostly folders and a couple of stacks, one of which is a multi-tierd program launcher.

Sometimes, just the threat of ZubaZ working on it is enough to whip the software back in line.