pioneer 104 problem plz help

got pioneer a104 dvd writer .been working fine on region 2 films ,now says locked on to region 1 ,and i cannot swap to region 2 or any other region ,is there any way i can unlock it ???
plz help ..
jemcat@ntlworld.com
 
cheers

thanks alot guys ,,been pulling my hair out here!!!
works great now , much appreciated, and thanks for the quick response . :D :D :D
 
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