Hmm, maybe you should report this to Nexus, the creator of everything on NARG:BuildBot, Terragen, Tactical Knife, M79 Grenade Launcher, Server Command GUI, SuperMacro, and soon to be released, Call of Duty Weaponset.
There has got to be some sort of record for the most topics on the first page. With all these problems and new help threads, I suggest replacing your whole computer. Is there anything not wrong with your Blockland/computer?Anyways, I have had this happen before. Not sure why it does that, but I suggest restarting Blockland, that worked for me. And I do recall it happening randomly.