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MIM has always worked great for me. What firmware are you on? Maybe try a un-install/re-install?

I'm on 2.1 and I've uninstalled it and reinstalled it once. Wbapp was giving me problems like this but once I uninstalled and reinstalled it worked fine. I'm not sure why this is giving me problems. I want to change the time in the status bar to say something else. Is there another way I can do this?
 
Ok I used extended preferences to make the change. So MIM didn't work but I still got it changed to what I wanted.
 
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