Hi people I just want to share with u my solution to the error1720 - well what worked for me anyway.
I had a earlier version of 4OD and when i upgraded the version id get the error. what u need to do is uninstall the version u had before but it probably aint in ur add/remove programmes list. so click this link http://support.microsoft.com/kb/290301 where on that page u can download a microsoft cleanup which when its installed will give u list of programmes when u open up the cleanup programme which will be in ur "start" then "programmes". on the list then u should find 4OD so then delete it. and then i went back to 4OD website n downloaded it and it worked.
