desktop and screensaver

I tried. But maybe I midunderstood part 2. I cam to restart the mac-os wich i did. But it ididn´t help. Then I pressed Command+option+r+p and it rebbot. But the decktiop and sreecnsaver still refuse to stop "reading picturece". And now my computer refuse to use wifi - and yes, i have connection. (It wish to upgrade i-tunes).

Soory, it didn´t work. I read your mail again and again. And tried 3-4 times.

I find "Libery" and find those files "cache.db", "com.apple.preference.cache" and "com.apple.preference.exache" - wich should I remove? Now I find the map com.apple.systempreference and in it i find caches.db. It that you ment? (Is the 2th map to the left, 3thd down)

Linc Davis wrote:

First follow the instructions in this support article.

If an iPhoto or Aperture library is the source of your desktop pictures, it may need to be rebuilt, or you may need to update the application to the latest version.

Otherwise, continue as below.

Back up all data.

In the Finder, hold down the option key and select

Go ▹ Library

from the menu bar. From the Library folder, delete the following item, if it exists:

Caches/com.apple.systempreferences

and move the following item to the Desktop:

Preferences/com.apple.desktop.plist

Launch System Preferences and test. If you still have the issue, put the item on the Desktop back where it came from and post again. Otherwise, delete the item.

Linc Davis wrote:

First follow the instructions in this support article.

If an iPhoto or Aperture library is the source of your desktop pictures, it may need to be rebuilt, or you may need to update the application to the latest version.

Otherwise, continue as below.

Back up all data.

In the Finder, hold down the option key and select

Go ▹ Library

from the menu bar. From the Library folder, delete the following item, if it exists:

Caches/com.apple.systempreferences

and move the following item to the Desktop:

Preferences/com.apple.desktop.plist

Launch System Preferences and test. If you still have the issue, put the item on the Desktop back where it came from and post again. Otherwise, delete the item.

The map I told you about is at 2 left, 3thd down. map.apple.com/systempreference

Linc Davis wrote:

First follow the instructions in this support article.

If an iPhoto or Aperture library is the source of your desktop pictures, it may need to be rebuilt, or you may need to update the application to the latest version.

Otherwise, continue as below.

Back up all data.

In the Finder, hold down the option key and select

Go ▹ Library

from the menu bar. From the Library folder, delete the following item, if it exists:

Caches/com.apple.systempreferences

and move the following item to the Desktop:

Preferences/com.apple.desktop.plist

Launch System Preferences and test. If you still have the issue, put the item on the Desktop back where it came from and post again. Otherwise, delete the item.