Thanks Dan (and others who have replied).
Let me update you on where we stand. First, we tried to get information from the third party administrator, who told us to talk to the VP of Finance, who is the trustee of the 403-b plan. E-mails to him were ignored, so my wife and I finally met with him, and he seemed very uninterested in the whole thing. He asked for documentation (which I have LOTS of) so we provided that. He met with the third party administrator of the plan, and my wife has e-mailed him for an update, but he has ignored her e-mail. HR has done the same thing.
We did contact the DOL, but they didn't seem to care. They did call the VP of finance, but still didn't seem like they wanted to pursue anything, at least that's the impression we got.
as for the lost shares/negative dividends, we were first told by a rep. of the adminstrator of the plan that it was admin. fees we couldn't see, but then the HR director told my wife that she contacted the president of the administrator of the plan and that there are no admin. fees. It can't be sales fees, because shares have "disappeared" even when no purchases have been made.
They also charged a premium on one of the funds for about 7 months, but when we inquired about why, it all of a sudden went back to being the right price. We never got any explanation as to why the NAV price for purchased shares was higher than it should have been.
We've tried to contact the media, but they seem uninterested too.
I'm at a loss of what to do.