I installed X.5 on my iMac G5 (ALS) and ever since have had issues with the machine not waking properly from sleep. It will sound like it starts up from sleep and the sleep light will go out (DVDs will even spin), but the display won't ever light. It just stays black. Has anyone else had issues like this? This iMac has had hoards of problems before, but was basically gutted early last year and was fine until X.5. I recently did a clean install of X.5 and the issue persists. I know a good way to check would be to install X.4, but I'd really like to avoid that if there was a quick fix someone knew of. Thanks!