Xcuse me for asking, but where have you located your dwnld folder (ie: path)? Check the folder (cmd+i) & double-check the write permissions.) If preferencing & Java are not the answer/problem then I'm a bit stumped! Do you have the english/international version (this shouldn't make any diff unless you installed the earlier version of Java that comes with the intern'l version.

"LimeWire was unable to open the incomplete file for the selected download because the file name contains characters which are not supported by your operating system" I must ask why would it refer to 'opening' the file? My very 1st impression was that it couldn't move it to the dwnld folder for that reason. There must be a reason why the error message refers to 'opening'! When a file has completed dwnlding, then all LW needs to do is 'move' it from the incomplete folder to the dwnld folder. Something doesn't quite add up here.