Forums mIRC Help Hide Ping! Pong! option checked but...

I start mIrc by joining a specific server and on the perform option of that server I have...

/nick <name>
/msg NickServ IDENTIFY <pass>
/join #<channel> <key>
/server -m irc.cerf.net:6666

Now when I do the join using the -m switch in the peform mIrc 6.03 seems to ignore the checkbox saying hide ping! pong! so I keep getting these stupid pings from the second server. Is their a command switch to hide ping! pong! events? Or is this a bug in mIrc I discovered?