Yes, it was a known bug that was fixed in firmware v11.
Updates to v11.018 are available by FOTA rather than NSU. Enter *#0000# to get your current firmware version and, if it's v10, then, directly from that screen, do "Options" and "Check for updates".
The update itself is about 3MB in size and you can pull it down either over WiFi or your oeprator's packet data service.
Just make sure your battery is fully charged so that the phone doesn't shut down halfway through the process, and don't worry if the phone flickers on and off a few times. This is normal.
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