Good way to get controller support

Gwalhir is one of the best (if not the best) steel swords in the Enhanced Edition, so if you can buy that it will last to the end of the game.

You also get a very nice Silver sword at the very end of chapter 4. Both of these swords are much better than even the best crafted swords, but since you can't do anything else with those runes, you might as well craft a silver sword to use during chapter 4. You can find a list of all of them here: Rune Swords

Personally, I like one Moon + two Earth runes for a mix of extra damage, knockdown, and sensitivity to silver.

This is a minor bug that seems to be fairly common (or so it seemed when I had a similar issue).

Simply hold the Shift key while you are on the main menu and your cursor will reappear. If you let off of the Shift key at any time, the cursor will disappear and you will be locked in place in the menu.