Currently Being ModeratedMar 1, 2013 10:59 PM (in response to sushiesque)
If there isn't a lock symbol at the top of the screen next to the battery indicator then try a reset : press and hold both the sleep and home buttons for about 10 to 15 seconds (ignore the red slider), after which the Apple logo should appear - you won't lose any content, it's the iPad equivalent of a reboot.
Is there a lock symbol then depending on what you've got Settings > General > Use Side Switch To set to (rotation lock or mute notifications), then you can lock/unlock the rotation by the switch on the right hand side of the iPad above the volume switch, or via the taskbar : double-click the home button; slide from the left; and it's the icon far left; press home again to exit the taskbar. The function that isn't on the side switch is set via the taskbar instead : http://support.apple.com/kb/HT4085
Currently Being ModeratedMar 1, 2013 11:33 PM (in response to King_Penguin)
Hi King_Penguin. Thank you very much for your reply. Unfortunately, the orientation is not locked -- as indicated by both the side swith and taskbar icon. On multiple occasions over the past two days, I have shut down my iPad and turned it back on again. Moreover, I have reset my iPad several times over the past two days. After reading some information in previous posts on this forum, I learned that I may be able to fix this issue if I restore my iPad by connecting it to my desktop and opening iTunes. I'm going to give this a try tomorrow -- I'll let you know how it goes Thanks once again; I greatly appreciate your helpfulness.
Currently Being ModeratedMar 2, 2013 12:20 PM (in response to King_Penguin)
Hi again. I just wanted to let you know that restoring my iPad via my desktop iTunes did not resolve the situation. I may end up contacting Apple Support. I've had my iPad for less than a year, and know that there is a one-year limited warranty.