urgent HELP!!!!!!!!!!!

[themis_t]

hello guys...i need some help.....look...i live in greece and about a week ago i rented a dvd region 1 dvd movie from the videoclub so i thought that the only thing i had to do was to change the key i had found in registry(HKEY_LOCAL_MACHINE\Software\Microsoft\Win dows\CurrentVersion) and change the value that it had from 2 to 1...and so i did,everything went fine and after watching the movie i turned again the value from 1 to 2 (the original setting)...Today,i tried watching a dvd region 2 movie but the only way i could watch it was by using dvd region free(in my own region!!)and that's because i got an error from power dvd telling me that my dvd rom was from dvd region 1!!!i thought that something must had gone wrong when i chengewd the value for second time so i checked it and the value was 2....!!!!wtf is going on here...i tried reinstalling the windows,power dvd but nothing is happening...still reporting that i have a dvd region 1 dvd rom...is it possible that the region of my dvd has changed(isn't this a hardware setting???????)

please tell me what to do...the last thing i think of doing is to disconnect my dvd rom operate the pc and then turn it off,reconnect it again and see what happens....do you have any easier solution?