I well remember when Gingrich was the target of those ethics complaints. Then House Minority leader David Bonior kept filing one charge after another in a disgusting display of partisan harassment. The first 83 of those complaints went nowhere.
The last one had to do with alleged IRS violations relating to the class he ran (which was televised as a series), on the grounds that it was a "partisan" event. (It wasn't). I recall Gingrich agreed to settle that one by paying $300k, but even the IRS decided there was no violation of the 503(c) rules, and declined to take any action against Gingrich.
I look forward to Gingrich swatting Pelosi like a fly if she dares to bring this stuff up.
And I have to add that when I hear Freepers using these "ethics violations" to argue against Gingrich, it makes me want to discount virtually anything else they have to say.