Having trouble running your MapleStory client shortly after download the latest update? Don't worry - Nexon's staff has already picked up word regarding this problem, and have already posted solution. You can read about it over in the full article.
If you're among the MapleStory MMORPG's denizens, you might want to listen in on this bit of bad news. The game's staff reports that those who downloaded the MapleStory client and auto-patched to version .55 will want to download their client again. It may sound a little drastic, but the MMO's staff explained that players who won't re-download will experience technical issues with their client. The staff further clarified that you'll want to download the MapleStory full client after the patch.
That's the latest update Nexon's team has for the moment. Drop by again in case they release any further news regarding this development.
Via MapleStory news