I have the same dongle. It appears it no longer supports wake from sleep. I tried on my main 10.5.2 machine, then plugged it into a 10.4.11 machine, same thing.<br><br>This Apple article covers the wake issue but I tried the update on mine and it said it was up to date. http://docs.info.apple.com/article.html?artnum=86524<br><br>Do a Google search using "dbt-120 wake from sleep" no quotes, for more on it.<br><br>I would return it and try another brand if you need the wake option. I saw one at our local Micro Center Mac section, Anycom CC3023, but I don't know if wake from sleep works.<br><br>The power button should wake it BTW, there's a setting in Energy Saver.<br><br>------>#1 - JD's Trivia game<br><br>------>#2 - MM-MCF Trivia game