holding that a pro se plaintiff's letter that contained "no claim sufficient to satisfy Rule 8" did not "constitute[] a pleading sufficient to toll the statute of limitations"

holding that initiation of separate litigation does not confer upon class members a right to notice above and beyond that due other class members

affirming the district court's sua sponte dismissal pursuant to the Heck bar

affirming denial of a motion for a late opt-out where, "despite the lack of mailed notice, the [movant's] attorney knew of the class action and settlement, and could have followed up on it"

affirming dismissal of bankruptcy appeal based upon untimely notice of appeal and quoting COLLIER ON BANKRUPTCY for the proposition that " multitude of cases hold that unless an appeal is timely taken, the reviewing court lacks jurisdiction to hear it"

reviewing alleged "procedural errors" de novo because court is determining whether conduct satisfies the legal standard of due process