I have had this happen, and usually after I reboot the phone (open x term, root; reboot) everything is fine. It doesn't happen very often, usually it's only after sending a MMS with fMMS. Occasionally it happens after receiving an MMS, but usually just when sending. In regards to step 4 not working, are you typing an l (lowercase L) between the commands, or | (pipe)? It should be the pipe symbol, which redirects the output of the first command to the input of the second, and then the output of the second command to the input of the third. To get the | (pipe symbol) you can bring up the on screen keyboard, press the (1#+) number option, then shift. It will be on the right side of the keyboard, below the & and above the backspace key. Hope this helps.