Serious Issue With Wwf

I used zynga (wwf) help with a weird, annoying and frustrating issue that has been occuring in many of my games for the past few weeks. I put in a valid word, like for example, "doubles" and the word gets rejected. There's a glitch whereby one of the letters in the word is capitalised, so ithe rejection will say "doUbles is not an acceptable word". Or the word "my", mY is not an acceptable word. Or the word lazy, lAzy is not an acceptable word and so on. I've been losing many, many points and games with this issue and request that you respond as soon as possible with a solution to this infuriating issue. Have you heard of this unusaual issue before?Thanks,Diane Fram