s2u2 and custom dialers

[ou2mame]

when i receive a call, s2u2 takes it, but it flickers between the black htc dialer, and s2u2 before they finally agree that s2u2 should take the call, and by then the phone has rang 3 times... is there any to have s2u2 default to open it, instead of the both of them trying to run at the same time? its really annoying because if i click answer on the black dialier skin, it just goes to s2u2, and if i slide to answer, it goes back to the other until it pops up for the third time.