Hello April_Heir
I am also new to ACE. May be more learnered users will have a better explanation but here are my humble thoughts.
I have made many blocks using "Symbol builder". I uses a dedicated Project for building symbols. In that project I have 4 drawings. All that is needed is more than two.
I always test my symbols on a different drawing to the drawing I develope the symbol on.
Yes, under edit componants there is an icon for "update symbol".
You may know this but when a symbole is inserted into a drawing it is that symbol block that us used for all future insertions of that symbole, (from the icon menue) despite the fact that you have updated the original block in the library.
The update sybole tool does not always work for me. Even if I go into drawing utilities and use the selective purge. What I mean is that you can list all the blocks and purge just one item. Sometimes very useful.
Just this morning I had a componant I could not up date, it was necessary to Right click on the tag and delete and reinsert fromt the icon menue.
In the past 6 months with ACE2012 I have had 26 incidents where "things just did not work" and a restart of the software was necessay.
Win7 lets one look at the memery use and when it gets to where ACE has used most of it, it is time to restart ACE.
Cheers jq