Fixed the checks on CreateAssignment.aspx for mins and maxes to be comparing actual parsed numbers instead of string values. Added size checks for problems involving the size field, so that size has to be greater than 0. Slightly modified the alert text on those types to reflect that change. For the question pages, I enabled the use of the delete key in the matrices in the working section of the page. I also check the feedback in the code behind to make sure that they had all been updated to give feedback pertinent to the question type.