Traditional Chinese IME crashes on certain syllables
I'm frequently using the Traditional Chinese IME on OS X, but recently it became a pain in the neck because it constantly crashes when I enter certain syllables. It doesn't matter whether I use pinyin or zhuyin, whenever I type a, yi or zhi, my Mac freezes for a few seconds and then the IME doesn't react anymore. I can type on but there's no conversion. I have to start it again to type on, which is extremely annoying. And I still can't type those syllables, because when I try it crashes again.
I don't know how long I'm encountering this problem now, but it's very annoying when chatting with my Taiwanese friends because there now are certain characters I just can't type.
Does anyone know what causes this and how I can fix it?
Thank you very much in advance for your help.
MacBook Pro 13", Mac OS X (10.6.4)