Game Lockup on LNC 26 Quest

[Mho]

Platform: PC
ISP: Time-Warner
Type of Internet Connection: Cable
Internet Connection Speed: Not Sure
Date & Time: 03/29/2011, ~5:30pm CST
Frequency: Always
Character Name: Mho Nhacara
Race: Miqo'te
World: Besaid
Class/Skill Rank: Any (27 LNC)
Physical Level: 50
Area and Coordinates: Gridania (7, 2) inside the Lancer's Guild
Party or Solo: Both
NPC Name: Willelda
In-Game Time: 4:00~10:00
Steps:
1. Talk to Willelda

Willelda will gesture, but no dialogue appears in the log. My character is then frozen and unable to move or open the menu, but I can still type in the chat buffer and access my log. I originally thought it was because I talked to her as a 17 Botanist with Hermes' Shoes on and was under the effect of Quickened, but removing the shoes and switching to Lancer resulted in no change. Trying several other classes didn't help either. Regardless of time or class, talking to Willelda seems to always result in a lockup so I am unable to access this quest.