Could not library errors can still occur when downloading from clients without HUGE support.

By full r/w permissions on OSX you mean changing the mod to 777 (read, write, execute permission for user, group and everybody else)? Only the user running LimeWire needs full read and write access to the folders.

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Morgens ess ich Cornflakes und abends ess ich Brot
Und wenn ich lang genug gelebt hab, dann sterb ich und bin tot

--Fischmob