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INFO on the RIM site
Input system error. System is being restarted.
Environment
BlackBerry 9000 series smartphone
BlackBerry Device Software 4.6.0.167
SDR304425
Cause
This is a previously reported issue that has been escalated internally to our development team. No resolution time frame is currently available.
Resolution
1. Back up the BlackBerry smartphone using the BlackBerry Desktop Manager software. For instructions, see KB12487.
2. Perform a clean reload of the BlackBerry Device Software. For instructions, see KB11320.
3. Restore the backup file to the BlackBerry smartphone. For instructions, see KB10339.
Additional Information
Performing a clean reload of the BlackBerry Device Software causes all third-party applications to be removed from the BlackBerry smartphone. You must manually reinstall all third-party applications.
The link to RIM info on the subject
KB18383-Unable to use the spelling checker on the BlackBerry Bold 9000 smartphone