OK so mazzle is broken but will be fixed (it always does get fixed) but in the mean time check out arkiveui alot like mazzle with newer addons and it isn't addon dependent I.E. you can take out and put in any addon without it breaking it, now arkive himself is working on gettting it fixed and was also a long time mazzle user (and still plays wow) he should have a updated widescreen verison released by monday. it can be found here
http://www.wowinterface.com/download...-ArkiveUI.html and better yet check out the forums here
http://arkiveui.freeforums.org/index.php he is updating the status of his project every day