Hi guys, i'm new here but i'm not a nubie

I insalled a new blind today (the GT 3 from Tiggz) + the cursors + the icons.
I am a mozilla user aswell and here the problem occurs. If i use the blind i cant use mozilla because it shakes all the time (up and down) if i click on for example a link it stops, and if i continuou it starts over again. It doesn't realy have a patern, it just starts and stops randomly(i guess) What i do know is that it always happens when i start mozilla.

Anyone have an idea what this is and how i can stop it.
I'm running Win XP SP2 on a highspec pc

btw I dont like the IE, i wonna stick too mozilla, so dont tell me to use IE ^_x