Simply right click on Titan icon and go to Properties and than click on Open File Location go to FX folder and find those files and delete or cut and paste it to another folder.

frostbite_target.fxb
frostnova_target.fxb
icestorm_target.fxb
inferno_target.fxb
lighting_target0_2.fxb
marseu_jantman_casting.fxb
metefall_target.fxb
staticnova_target.fxb
supernova_target.fxb
thundercloud_target.fxb
heal_target0_1.fxb
heal_target0_2.fxb
heal_target0_3.fxb
heal_target0_4.fxb
heal_target1_1.fxb
heal_target1_2.fxb
heal_target1_3.fxb
heal_target2_1.fxb
heal_target2_2.fxb
heal_target2_3.fxb
chain_target.fxb

or use this patch

viewtopic.php?f=52&t=23186