QT 7.3 Crashes Playing .mpg Files on Leopard

I've got lots of other problems with Leopard, but now I've discovered that any time I try to play a .mpg file with QT 7.3 (build QuickTime-6370000~5) on Leopard 10.5.1 (9B18), QT crashes. 100% reliable. Same for any app that uses the QT engine. Same files play fine on my other (non-Leopard) Macs.
Exception Type: EXCBADACCESS (SIGBUS)
Exception Codes: KERNPROTECTIONFAILURE at 0x0000000000000000
Anyone else seeing this?

Motu says to me that was an account problem:
"with the ultralite powered on, quicktime crashes when i try to play any .mpg video. The problem dissapears if i switch off the motu. I use a macbook with osx 10.5.1 leopard
Responses
Added by Matt on 2008/01/21 15:58:25 US/Central
State change from 'Unread' to 'In progress'
What happens if you use a different user account on this machine?
-Matt
Added by Eloy on 2008/01/21 17:12:44 US/Central
ok. i've created a new user (administrator) and running with that account, the problem dissapears. Video mpg runs correctly... why?
Can i solve the problem in my original account?
thank you.
Added by Matt on 2008/01/22 08:55:17 US/Central
I am not sure if you could solve this problem with your original user account, however that tells me that the problem is not with the unit, it is with your account. Perhaps you could try reinstalling quicktime, however I am not sure what the issue could be within your account."

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QT 7.3 Crashes Playing .mpg Files on Leopard

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