the newest garmin cd map release 2009 fix any problems?

I just installed the new maps update from the cd 2009 in to mi garmin 660 and sad I found out hi didnt fix any of the road problem what was not in my garmin before install the maps is not ther after install the updated maps.Soon after I installed the up date my garmin started to frize wen plain the MP3 files.
Any body can help on this?