Okay. To play Blockland, I had to upgrade my driver. Not sure if that has much to do with it, but I installed it. It was a while back, and the first week I played, I had no problems.
However, this week, EVERY server I go to except offline ones eventually crashes for me and comes up with the bullstuff message "Blockland encountered a problem an needs to close." If not that, I lag out to the point, where I cannot move, I cannot communicate, and I have to disconnect and rejoin and replay. It's only lag for me, because others type, the area where it shows who's typing shows up fine, others can move, and everything. But for some reason, I lag out.
I run on a Windows XP with a decent graphics card (not great, but decent).
What the forget is the problem?