Lags & Invisible, Frozen & Stuck Sims --> Post here if you have the issue.

That's EXACTLY the same position I'm in, nicki. Every EP and SP from Sims 1 until now, with Generations. I always preordered too. I even had The Sims Online until EA took over from Maxis and -surprise- killed it off soon after.
But you know, enough is enough. We all love this game, a lot of us are long-time committed fans to this franchise, but it is just not logical to continue paying $40+ for every EP when the game does not work the way it should, and continues to snowball into a giant mess of game-corrupting problems.