buf: bad precompiled chunk means theres something wrong in the lua file, theres some missing , or } , { , was planning to make you a working client but im still occuppied and work keeps piling up,
I found the clean 2012-04-10 working client with datav4,i made for a friend, try this one : 2012-04-10 Working client (uploading)
there a client there that says a RO you don't know please overwrite it with the one hexxed with your RO name: GummyRO.exe (reference from screenie)
just rename damndata.grf and damndata2.grf,, if you're wondering why 2 grfs, i have separated the palletes grf from sprite and texture to have faster grf repacking after patching, edit DATA.INI