that happened to a friend today, and i didn't knew y
well in ur case it must be the other files are making conflicts with the skin (coz of differents version) but it worked before with differents versions...........
the Boo.7 MSN work perfectly for all my friends that have it... but i think they all have 6.0.0268......
[edit] I just tried with my 6.0.0504 .dlls and it worked perfectly, weird [/edit]