hey i am purchasing a whites quantum 2 soon and it is my understanding that it can be converted to a qxt by changing chip/software.what i want to know is how would you know if it had been changed out already.i was also told that whites updated them under warranty to a different version.i called whites and they are really reasonable on the update but if i dont need it i will save the postage..any help would be appreciated...........daniel dladams76@hotmail.com