Msaada juu ya iBook G4

Natumia laptop tajwa hapo juu window Mac os x 10.5.8, kunabaadhi vitu nashindwa kuzifungua na kuinstal kwa mfano nimejaribu kufungua joinAir inaniambia ( there is no default application specified to open the document " ZTE-Join-Air-1.0.rar" ),Nokia PC suite inaniambia ( the movie could not be opened ).Help coz mgen kwenye mambo haya!

[h=3]Reset Launch Services under Leopard[/h][TABLE="width: 573"]
[TR]
[TD="width: 28, align: right"]1.[/TD]
[TD]Quit all running applications.[/TD]
[/TR]
[TR]
[TD="width: 28, align: right"]2.[/TD]
[TD]Trash the following two files in the Macintosh HD > Library > Caches folder:

• 
  [*=left]com.apple.LaunchServices-0230.csstore
  [*=left]com.apple.LaunchServices-023nnn.csstore

where nnn is the User ID number of the affected account.
Type your Admin password if prompted to authenticate the deletion of these files. See Notes [1] and [2].
Note: If you upgraded from Mac OS X 10.4 Tiger, this folder may also contain files with file names:

• 
  [*=left]com.apple.LaunchServices-0140.csstore
  [*=left]com.apple.LaunchServices-014nnn.csstore

where nnn represents the User ID numbers of accounts on the Mac. These files can also be deleted as they are leftovers from Tiger.
[/TD]
[/TR]
[TR]
[TD="width: 28, align: right"]3.[/TD]
[TD]Restart your Mac.[/TD]
[/TR]
[TR]
[TD="width: 28, align: right"]4.[/TD]
[TD]Log in to the affected account.[/TD]
[/TR]
[TR]
[TD="width: 28, align: right"]5.[/TD]
[TD]If the problem is resolved, skip to step 6. Otherwise:

1. 
   [*=left]Trash the com.apple.LaunchServices.plist file in the Home > Library > Preferences folder. See Note [3].
   [*=left]Repeat steps 1-4.

[/TD]
[/TR]
[TR]
[TD="width: 28, align: right"]6.[/TD]
[TD]Empty the Trash.[/TD]
[/TR]
[/TABLE]