I got hanging around with those problems for quite a long time and can't find a solution.
First problem:
My WorldMap is kind of blurred, but the FastTravel- Markers are perfectly sharp.
I've been googling and tried out with fxaa on and off and I reinstalled Skyrim. It may probably be something with my graphic card.
Second Problem:
The Animation of at least the Destructionspells is invisible. There ARE flames in my hand but if I cast "flames" there is only appearing a black burnt spot on what I casted on. The spell is all in all working propper.
It's the same with the Dragons. Their breath does damage but there is no animation visible.
Third Problem: Water is mostly invisible. At Daylight there are some reflections but espacially at lakes or at night i can watch through it and see the ground.
I will collect some screenshots and add them in the next hour.
System Informations:
Windows 7
Intel Core Duo 2,66GHz
ATI Radeon HD 3800