Returning Mac user (at least for a week) has questions

I submitted this to the forum and no one answered so maybe putting it here will work better.

A long time ago I played Lineage and managed to get my mage to level 40 before I decided that I had enough of the game and left to other online games. However, I've always kept up with Lineage 1 and 2 (despite not being able to play it) and so when the new episode came out I decided to return at least for the trial week. I wanted to ask some questions on the main board but am unable to, maybe because I have a trial account.

1) I am using an Apple 15" flat screen at 1024x768 and at full-screen the graphics are very pixellated. If I run it in window mode the graphics are crisp but it's a tad small. I don't recall this happening when I played it last so is there anything I can do?

2) Is there any way to fire the same magic skill over and over again? It seems that I have to press the hotkey, move the target over the enemy, click and repeat. It's somewhat difficult when the enemy is moving so is there a better way?

3) I started on Lands of Aden but I am open to moving to another server since I don't have any ties. How is the community on Lands of Aden and are the changes made there beneficial?

Thanks for any help.