Ok...been a while since I used 4.1, but....if you can't import and convert quotes this will work 4 U.
It's a character mapping problem, U need 2 do a 'find and replace'. Basically Quark doesn't regognise the mapping for those characters. If you re-type one of the 'open pars' from word in the 'find' field then replace this item manually in Quark with Quarks own open par, then copy/paste that item into the replace field. All will be well in your world.
Bit of a bind, but will work...