Gnutella Forums - Incomplete Download File won't delete at all.

Hi. I'm distressed. I have a couple "Incomplete" downloads that do not show up on LW program, but when I go to the folder through my computer the file appears in the "Incomplete" folder. I try to delete it, but the popup message states:
"Cannot delete numanuma.mp3: Cannot find specified file
Make sure you specify the correct path and file name"
What can I do? I have sat for three hours trying to figure it out. I've tried right-clicking them, but "delete" is not an option. I've tried dragging them to the Recycle Bin, but I'd get the cirle with a dash through it. I've even uninstalled LimeWire in hopes that the entire "LimeWire" folder and its subfolders(including "Incomplete") would disappear.

What am I to do now?

Please help me.