Client just shuts down

[Estu]

Have been getting this issue since I started. Finally got one recorded in the log (was forgetful about logging before):

[Wed Aug 25 14:57:05 2010] ERROR: String not found. (-2139324287)

This is also the one that caused my first death. It also occurred after zoning, so that doesn't work to prevent it. Will try logging onto another character first to see if that prevents it. I really hope the devs look into this.