I've not tried it, but Windows probably works fine because it avoids HTTP chunked transfers, like CUPS 1.4 does.
I've no idea if it would work or not, but you could try removing the CUPS packages, and then playing with apt pinning to force those to be reinstalled from the Lucid repositories. I have no idea if that would work well, and it's not an ideal solution in any case, but may be the only option.
I've not tried it, but Windows probably works fine because it avoids HTTP chunked transfers, like CUPS 1.4 does.
I've no idea if it would work or not, but you could try removing the CUPS packages, and then playing with apt pinning to force those to be reinstalled from the Lucid repositories. I have no idea if that would work well, and it's not an ideal solution in any case, but may be the only option.