GoldenDict is a very nice free dictionary software. Thanks to the developers!
The pop up function for clip board works almost perfect, except one small issue: I set the hot-key for clip board to be 'ctrl+c+c', however the dictionary will capture 'ctrl+c' and active the pop-up window. It will not wait for the second 'c' key. This behavior mix the copy function and the hot-key for clip board. When I only want to copy a chunk of text, without any intention to look up dictionary, the pop-up window will show up.
I solve this issue, by setting the pop-up keys to be NOT 'ctrl', then the hot-key 'ctrl+c+c' will work as expected. I just share this experience of mine.
(By the way, the pop up function for selected text won't work anyway under windows7 64bit, GoldenDict1.01.)