一些朋友安裝使用了Flex Builder 3，輸入了正確的注冊碼，但是發現Flex Builder圖表組件水印依舊去除不掉，這是怎么回事呢？

icech找到一個解決的方法，與注冊碼是否正確無關。

1. On the Project menu, choose Build Automatically to turn off this option. If the option is already turned off (deselected), do not complete this step.

2. Choose Project > Clean.

3. Choose Project > Build.

4. (Optional) Choose Project > Build Automatically to turn on this option again, if desired.

更加具體的信息可以參考這里： http://www.adobe.com/go/kb404736