I have been known to be wrong before, but I will continue:

What I've found is that the auto away messages (MsgPlus!) that you can pair to a certain preset status, automatically repeat over and over. There doesn't seem to be a way to stop it.
The status preset configuration tab lets you set the repeat auto away message to between 2 and 1000 seconds, why can't you just set the message to appear once, then not appear again?

If this problem has not already got a solution then I think it's a good idea for the next release. Status presets are real handy!

so i'm assuming there's no way to change this...

ah okay, found the answer:
http://shoutbox.menthix.net/showthread.php?tid=25687