I fixed the problem I had (no monsters on my shard) already by reading a post, but there are still more "problems" to fix
-> I have no doors / signs / windows / etc. in the houses in all towns
-> when i turn over an item with my mouse there should be an item information about it, but there is none (only a small square appears with no text in it)
You can get doors, signs and decorations by downloading the "Default UOX3 Worldfiles"-package from the Downloads-page, and unzipping it to your UOX3\SHARED\ folder, overwriting any existing files in there.
Note that this must be done while UOX3 is shut down, and that this will effectively overwrite any changes you've done to your world since you got UOX3. I.e. any characters you've created, items you've placed will no longer be there when you start up UOX3 again after.
There is no such simple solution for the mouse-over problem though. Which client are you using, 2D or 3D - and which version?
OSI recently changed the packet handling for displaying item info, due to that, we had to choose to support the latest, or the older clients. For which we chose the latest (as it's much harder to get everyone on an old client than to have them patch to the newest).
Patching to the newest client should fix the item info display (for the mostpart). Note that our descriptions are not as complete as OSI's.
I ve seen a post about the mining regions... I set it to "1" (cavefloors and mountain sides only), but nothing happened are you working on it or is it not enough to set the mining region to 1/2?
maybe i have different problems to figure it out because my english-writing/reading-skill is not at 100.0 % at the moment