Wal-Mart Stores, Inc. (NYSE:WMT) has canceled an unnamed number of online orders after a computer glitch let people buy electronics for just a fraction of the real price. Items that normally cost hundreds of dollars were selling for less than ten, and once word got out on social media sites the number of sales, and the potential losses to Wal-Mart, really took off, reports Susanna Kim for ABC News. A few people had the foresight and go pick up the orders instead of waiting for them to be shipped, but for everyone else, Wal-Mart will be giving them a $10 gift…