Start -> click the 'small white circle with the vertical line at the top on a gold background' will put the Inspiron 530 to sleep. This agrees with your analysis and with the writing that appears when you roll the mouse over it.  (By the way this symbol is the same as on the blue back-lit power on button on the Inspiron 530 and appears to be the universal Power On/Off  symbol). It seems to me your problem was fixed by unchecking 'wake on directed packet' (WODP). If this is the case you can try to close this incident by selecting the 'verify answer' option. It would have been nice if Dell, when they shipped the system, had somehow warned us that the system could wake from sleep mode prematurely because of  WODP. That way we wouldn't have had to go through the hassle of problem determination. That said, I am generally very pleased with my Inspiron 530 and hope that you are. Good Luck and Happy Inspiron 530 Computing.
Hi, i hope I posted in right forum, I have a new dell  530 desktop with vista, I am trying to use the sleep feature. I want to go to start click sleep and be able to have it sleep no matter how short or long a time and wake  when I touch my mouse or keyboard, a tech helped me set it for 5 mins to go off and it did  but  it was on when I woke up so thats not what I want it to do, my screen was on this morning. On xp I could go to start and click standby and no matter how long or short a time it would stay off till I touched my mouse can one of you nice folks tell how to set this vista to do that, I think i may have changed a setting when I was tyrying to keep  my screen saver from coming on  or who knows what I changed.  I thank you very much!
Sleep feature in vista, help please