One handy way to find out if your electronics are going to experience problems is to leave them on for 48 hours shortly after purchasing them. If they're going to fail, most products will malfunction within the first 48 hours of use. After that first 48-hour period, turn the product off for as long as possible. Ideally, you'll leave it off for a full day.  If the electronic item fires up again with no problem, you can rest easier knowing that you've thoroughly tested it and are unlikely to have long-term problems. Most electronics have at least a 60-day warranty that you can fall back on. Depending on the store, you may also be able to simply return the item.