I've tested with linux-image-2.6.34-020634-generic_2.6.34-020634_i386 and the problem is no longer reproducible. lsmod now shows only the rt2860sta module as lucid did.
I've tested with linux-image- 2.6.34- 020634- generic_ 2.6.34- 020634_ i386 and the problem is no longer reproducible. lsmod now shows only the rt2860sta module as lucid did.