Harper v. Virginia Dept. Taxation, 509 U.S. 86 (1993) mandates that a new legal interpretation may not be applied retroactively where such application would create a Due Process violation. See Reynoldsville Casket v. Hyde, 514 U.S. 749,758-59 (1995) (as courts apply "retroactively" a new rule of law to pending cases, they will find instances where that new rule, for well-established legal reasons, does not determine the outcome of the case); Glazner v. Glazner, 347 F.3d 1212,1216 (11th Cir. 2003) (Supreme Court retained the possibility of "pure prospectivity" in civil cases), and Chevron Oil v. Huson, 404 U.S. 97 (1971), continues in "modified form").