pak sum/name mismatch

[David A. Fuess]

In installed a couple of MODS to control team balancing and specing

z1944_TeamBalance.pk3 and zzz_cal.pk3

Now, when they are present either separately or together I get "pak 
sum/name mismatch" when I attempt to connect. Has anyone else excountered 
this error? How does one deal with it? (I have suspected that the mod files 
are Windows but my game server is Linux ... )

Thanks,
Dave