My iMac is perfect working order, but sometimes when I'm not using my iMac for more than a day and it's in sleep, the keyboard and trackpad act strange. I'll turn my iMac back on from sleep and the caps lock won't turn on my keyboard. The keyboard works perfectly every other time (when I shut the computer all the way down, don't keep it in sleep long), but when in sleep for a day or more, sometimes 18-20 hours, it does this. Trackpad problem doesn't happen as much, if at all,but it does happen when the cursor doesn't move, like it's frozen from being in sleep so long. Anybody know what the problem could be?