Apple has started a replacement program for a “very small number” of Seagate 1 TB hard drives that may fail in certain conditions. These drives came in 21.5-inch and 27-inch iMacs sold between May 2011 and July 2011. Although Apple is contacting iMac purchasers who provided a valid email address during the product registration process, you can also enter your iMac’s serial number on this page to see if it’s included in the replacement program. As always, back up your data regularly, and be certain to run a backup right before you take your Mac in for the replacement so you can restore onto the new drive. follow link
Enabling Auto Spelling Correction in Snow Leopard
In Snow Leopard, the automatic spelling correction in applications is not usually activated by default. To turn it on, make sure the cursor's insertion point is somewhere where text can be entered, and either choose Edit > Spelling and Grammar > Correct Spelling Automatically or, if the Edit menu's submenu doesn't have what you need, Control-click where you're typing and choose Spelling and Grammar > Correct Spelling Automatically from the contextual menu that appears. The latter approach is particularly likely to be necessary in Safari and other WebKit-based applications, like Mailplane.
Apple Replacing Some 1 TB iMac Hard Drives