Use a different mod...or something. What are you using?
You didn't really give any info. Bartender and Dominos both do what you want though.
Nom Nom Nom [NNF] (2 points) - When you Ferocious Bite a target at or below 25% health, you have a 50/100% chance to instantly refresh the duration of your Rip on the target.
yeh was my bad.. im using dominos but the GCD mod is quartz
I had a similar issue on my dk. I use quartz and dominos too, but I believe omni cc was the culprit.
was fiddleing around more with it today and realized that the spells arent affected by GCD so they wont dispplay one