Due to shortages, Best Buy has had to cancel many online orders just before Christmas. December 23, 2011- Some customers of Best Buy have received bad news just days before Christmas. Best Buy has had to cancel some online orders only days prior to the big holiday. The largest retailer in the U.S. for specialty electronics said on Wednesday it had been overwhelmed with purchases of certain products on its website. This has caused the retailer to cancel some of those orders.  The electronics retailer...