We’re not surprised that there have been some glitches in the Mac App Store distribution of 1 million copies of Lion in one day, but it’s worth paying attention when you download, since some people — undoubtedly a very small proportion — are seeing multiple charges for Lion. Most of the problems appear to be related to using PayPal to pay for the transaction. Some people are having no trouble getting refunds; others are getting the runaround. There’s nothing special to do; just stay alert after placing your order to make sure that if multiple charges do happen, you’ve documented everything for customer service at Apple, PayPal, and your bank.follow link
Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the best-selling Take Control ebooks.
Set Your Default Printer
If you print mostly to a single printer, make sure it's selected in the Print & Fax preference pane's Default Printer pop-up menu.
Beware Multiple Mac App Store Charges for Lion
Check out the Take Control ebooks that expand on the topic in this article:
Upgrade to Lion successfully with Joe Kissell's advice, gained through countless test installs. Learn what to do if you can't download from the App Store, avoid problems, and perform key post-upgrade tasks. Covers upgrading from Tiger or Leopard, Lion Server installation basics, migrating to a new Mac, and Recovery mode.