hello, I bought a casio xw g1 a few moths ago, but i couldnt add new sounds from the computer. i downloaded some samples from this page, but i can only play the "performance" mode (zpf), and i cannot add any sound in "tone" help please can someone give me a download link of a sample that you know that it works?, to check what is the problem (in the "tone" mode, not performance or zpf) thanks