Whenever I make changes to my PC3 files they revert back to the default values. I can filter out all unwanted paper sizes but all the paper sizes keep coming back. Same thing with the PC3's I use for creating PDF's on various sheet sizes. I 've made one each for A1 and D size by using the custom sheet sizes and they will work for a while, but always revert back to the 11x17 sheet size. Any suggestions appreciated.