Android Lint: Unused Resource Warning Not Going Away

Question

I'm getting a warning in my android xml

The resource R.string.goals_header_time appears to be unused
The resource R.string.goals_header_units appears to be unused
The resource R.string.goals_header_current appears to be unused
The resource R.string.measurement appears to be unused
The resource R.string.goals_header_name appears to be unused
The resource R.string.goal_name appears to be unused
The resource R.string.goals_header_goal appears to be unused

Once I get rid of those strings the warning is still there.

Cleaning the project and restarting eclipse doesn't fix it either. The only way I've been able to get rid of the warnings so far is to go into the preferences, turn off checking for unused resources and then turning it back on again. Is there a better way?