If you have problems unlocking your device's pattern or password lock, and your device is properly rooted with a functional recovery installed, just smile and relax as its not a problem.
Download this (Download here)
Place it on the root of your sdcard, reboot your device to recovery mode.
On the recovery screen, select Install Zip from sdcard
Locate and select the downloaded file.
Scroll down to yes and click.
Once it's done flashing, select Wipe cache.
After that, reboot your device.
If your device still displays your password/pattern lock, just input any incorrect pattern and it should automatically unlock itself. ;)