Hi. 1) The problem: Until recenty, I had sound. One day, I put my computer into sleep mode overnight (as I've always done). The next day, I brought it out of sleep mode and... silence. I'd made no changes to my settings and hadn't installed anything on my computer between the two sessions (unless I was sleep-walking when I did it). 2) Here's what I've done: Checked all connections. Solid. (I live alone and have no pets.) Checked output with headphones - silence. Rebooted many times. In Sound > Playback, the green VU meter show that there's sound - but there's nothing at the speakers. <Speakers> is checked as default device. Checked services.msc. (Shows Windows Audio as "Started"). Downloaded and re-installed the last Asus audio drivers. Deleted my sound controllers from my Device Manager and rebooted. No luck so far. 3) My specs: Windows 7 64-bit (Home Edition) Intel i5-2400 processor Asus P8 H67-M Pro motherboard Realtek onboard High Definition Sound 4) Observation: Through reading online about this, I've noticed a common link. A lot of people lose their sound after reactivating their computer from “Sleep Mode”. It's as if the whole computer wakes up, but the sound doesn't. It's still in Sleep Mode. Any ideas would be much appreciated.