A family of Microsoft relational database management systems designed for ease of use.
Please don't revive 5 year old threads.
While I appreciate this is an old thread I've only recently come across this problem and found a solution to it having first visited this thread and found what was suggested very unhelpful. There will be others coming across this problem and if they visit this site as I did then perhaps this old but relevant reply will help.
There is another update to this problem discovered this morning which might be a quicker solution to this original problem.
Open a table, highlight the field, on the ribbon select Fields, and in the Data Type/Format select currency. You will need to do this for each relevant field and it should automatically update the Forms, queries and reports although I cant be sure as I discovered this only after making the changes as described in the previous thread.
Hope this helps.