ITunes 8.0.2 choppy on MBP (early 2008) 10.5.5

Question

Hey there...
I just bought a new MacBook Pro 2.5GHz (early 2008), but am now encountering some pretty weird issue with iTunes.
I migrated my old User Account from my old MacBook.
Updated all my Software (i.e. iTunes 8.0.2, + all other updates via Software Update)
Repaired permissions.
I afterwards started iTunes and noticed that it ran quite choppily, i.e. the cursor + screen kind of freeze every few seconds.
I move the cursor, it freezes halfway and after about a second jumps to where it should have finished the movement. I click on the menu-bar and it most often reacts only after a 1sec delay. Again moving the cursor freezes everything for about 1sec.
Any clues what might be wrong ?
What I tried to fix this:
- I re-installed iTunes 8.0.2
- repaired Disk Permissons (once more)
- checked my Hardware with TechTool Pro 4 (no problems found)
- used Onyx to delete caches and do about every maintenance thingy possible
- after all that repaired permissions once more...
Everything to no avail...
(btw: on my Old MacBook (same Software config) it runs perfectly fine and smooth, just as always!)
Any suggestions ?
Message was edited by: Theral Sadurns

Answer 1

I went on trying what was suggested in another thread:
1)
put your computer off.
release the power cord.
2)
hold down the 'ON' button with one hand and put in the power cord with the other hand.
release the on/off button
wait for the iMac login screen
(or wait untill the computer is booted totally if you don't use the login screen)
3)
Restart the iMac
after you hear the start-up sound, hold down the 4 keys:
ALT
APPLE/ CMD
P
R
hold the above named 4 keys untill you have heard the start -up sound for the THIRD time
Yes: for the third time
4)
Login
go to: 'users' ---> 'home folder' ---> 'library' --> 'preferences'
drag (ONLY) the next 3 files to the trash:
'com.apple.iTunes.eq.plist'
'com.apple.iTunes.plist'
'com.apple.iTunesHelper.plist'
empty the trash can
5)
LOG OFF
6)
LOG IN
7)
repair disk permissions
8)
Go to 'system preferences'
go to 'network'
go to 'configure'
go to 'proxys'
make sure that 'configure proxys is NOT set true a PAC file, but by 'hand'
make sure that 'use passive FTP-Modus' is 'ON'
9)
Go to TCP/IP
Go to 'configure IPv6'
Make sure this is on 'Automatic'.
10)
Go to 'sharing'
Go to 'firewall'
Make sure 'sharing iTunes music' and 'networktime' are 'ON'.
Go to the blue apple logo left in the screen and select 'Software-update'
See if there is a new security update from Apple.
If yes: download and follow instructions (restart when Apple tells you so)
11)
When the computer is restarted;
repair disk permissions
12)
Put iTunes on
13)
follow the instructions that iTunes ask you too.
Which did also NOT work...
There is a thing, though, I find quite interesting:
If I play a song... there's no skipping, the playback itself is as smooth as ever... just the OS becomes kind of choppy with iTunes running and these little freezes every few seconds.
While playing back any song I noticed that although the Song plays just fine the 'iTunes Display' hangs at say 0:14 of the track keeps that status for 1-2 secs and then goes through the states of 0:15, 0:16 etc. rather quickly until it finally catches up with the song...
Weird...