Function not returning the right value

Hi, I'm having a strange problem and am hoping someone knows how to fix it....

I'm trying to send a string to a function in another class and have it return it in a textfield, so I can add it to a movieclip and to the stage. I am using it for several buttons.The problem is when I put a string value in it returns a string value for the previous call to the function which is not the string value I want to use. Here's the function:

public function replaceMCTxt( mcString:String, xPos:Number,

                                                                                           yPos:Number, Width:uint, Height:uint, newFontSize:uint, rolloverText:Boolean = false):TextField {

                                                  var newMCTxt:TextField = new TextField();

                                                  newMCTxt.x = xPos;

                                                  newMCTxt.y = yPos;

                                                  newMCTxt.width = Width;

                                                  newMCTxt.height = Height;

                                                  var textFormat:TextFormat = new TextFormat();

                                                  textFormat.align = _gameModel.screenFontAlign;

                                                  textFormat.size = newFontSize;

                                                  textFormat.font = _gameModel.screenFont;

                                                  textFormat.color = _gameModel.screenFontColor;

                                                  newMCTxt.defaultTextFormat=textFormat;

                                                  newMCTxt.text = _languageClass.getTranslation(mcString);

                                                  newMCTxt.selectable = false;

                              return newMCTxt;

                    }

i'm trying to call it with this statement in another class:

_moreGamesTxtField = _updateLanguageClass.

                                        replaceMCTxt("MORE GAMES", _gameModel.moreGamesTxtXPos,

                                                                       _gameModel.moreGamesTxtYPos, _gameModel.moreGamesTxtWidth,

                                                                       _gameModel.moreGamesTxtHeight, _gameModel.moreGamesTxtFontSize);

Instead of giving me a "MORE GAMES" movieclip it gives me a "PLAY" movieclip which is what the previous call to the function used. I also had a similar problem in another function where it was doing the same thing with filtering different buttons, so I think the problem is in the function ,but I'm not a good enough programmer to know what it is. If anyone has an idea please let me know. Thank you.....