Tablet [Q] Kernel Xperia arc S

Hello from France and happy new year,
My problem is that i have got a Xperia Arc S and i am using RUSH KERNEL V 14 with VIPER 6.
Now with that sort of rom and kernel i find totally impossible to read my sms with voice synthesis as I did before changing. Applications close very often and I've followed the installation instructions carefully.Do you have any idea of what is the problem? Thank you for your help