I enabled Views module on Drupal 7. Created a view, added filter and want to expose the filter. However, the checkbox for the expose filter is not sticking and filter is not getting exposed. I search on this issue, multiple articles and forum topics found. I enabled Ajax, do not have devel theme, or any other module that can possible conflict with this. Can't seem to find what else could be wrong. I even got the Better Exposed filter module and it did not help with this issue. I tried the dev version of views too, no luck. Any help is appreciated. I am so frustrated, I am thinking of uninstalling Drupal 7 and reinstalling Drupal 6.