255 must have been an OLDER number that I was thinking of but yes, it goes into the 500 range (as pointed out). I dont know, Firefox (granted this is NOT two way communication so that on its own could be part of the potential lag issues) autochecks my spelling as I type and it doesnt seem to lag me one bit. While typing this it caught 4 errors (as of this sentence - boldfaced deliberately) and underlined them red (tho did NOT auto CORRECT). Perhaps something like this could be done where we have the option of correcting them just by visual glance.