Changed a registry setting and now the logon screen does not appear and I do have internet. However, I didn't have MMS..installed an Arcsoft MMS cab, which now gives me the 'send message' option for a photo, but it doesn't actually do anything. Then the phone started going to a blank screen (like you shut the display off) and it won't turn back on. I can hear text messages coming in so the phone is working, but I get no display until I reset the phone.
I uninstalled the MMS cab and have the same problem..just reset it for the first time after the uninstallation to see if that fixes it.
Pretty discouraging...I'm tempted to just cough up the $80/mo to get a new phone, but I really like my SERO plan.