100% cpu usage when opening itunes or quicktime, please help!

every time i open itunes or quicktime my windows laptop centrino´s core jumps to 100%, even when the programs are idle!!
-i tried reinstalling them, manually removing any leftover program files and folders.
-Right-clicking on the QuickTime folder and clicking Delete from the shortcut menu.
-Navigate to C:\Windows\system32\.
-Remove the files QuickTime.qts and QuicktimeVR.qtx.
nothing works...
now i cant listen to music with only my batteries anymore!
windows media player ***** and the new version 11 is a lot worse, but it uses just about 10% of my processor.
thank you for your help!
gateway centrino mx6618m Windows XP

hi captain
actually i noticed the problem in the first place when cheching the task manager. 97% itunes 3% taskmanager.
i wish i could know what all those other tasks are and end them (some are obvious but other arent), but it wouldnt solve my problem.
still thank you
XP centrino laptop Windows XP

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