As a guess, and assuming you haven't accidentally applied a preset, I wonder if you have changed the default Develop settings.
Select one image, go into Develop. Then Develop > Set Default Settings and Restore Adobe Default.
Hi John, thanks, that worked...it allowed me to click the Reset button in develop and then it zeroed all the sliders on that one image...then went back into the library module, selected all, and applied my standard import preset...it now works normally...
Not sure why this happened on only 35 images off a card when I imported a total of around 90 images?...
whatever, that worked...thanks...
M