MOLLOWITZ

Imac 333 Problem

i currently own an imac 333 with a 6gb hard drive, 160MB RAM, running system 9.2. basically, the only program i can run is ProTools Free. the computer has some kind of hardware problem (i don't think it's software because it does the same thing with basic system software installed) that causes it to crash repeatedly for no reason. i use ProTools for recording my band with a direct interface from the amp to the computer and then burn the bounced audio to an external burner with toast.
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anyway, it's very annoying to have the computer crash most of the time when you try to open the 'sound' control panel or toast, and all the other applications besides ProTools.
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the computer was examined by apple service people and they thought that it was either the logic board or the cd drive causing the problems (the only reason i didn't replace these components is because they still weren't sure that was the problem). apple diagnostic tests were run and revealed that there were no 'bad blocks' in the disk. the computer has been continually maintained with Norton Utilities and DiskWarrior, and i routinely optimize and rebuild the disk at least once a month. when i run DiskWarrior (once a month) the graph shows that over 33% is out of order- this is odd considering that all i do on it is record with ProTools!
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if anyone else has had a problem similar to this please help!
i am considering purchasing a used ibook 500mhz/20gb/256mb RAM (to be used for audio) if this computer can't be fixed.

thanks in advance-

cody

Recording With Standard Audio Card?

for the longest time i've been trying to record midi into ProTools, then bounce it to a disk and burn it off... i've been trying to explain to anyone who would listen what i was trying to do, and what i had already tried. someone was perceptive enough to tell me that midi is NOT audio! so- now understanding what i previously thought that i knew, i continue my search for a way to directly interface my kurzweil 2500x with my imac.
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moving on- my question now is this: how to i directly interface my kurzweil 2500x into my imac using the standard audio (line-in) card? is there some sort of adapter i need to purchase? or do i need an entirely new audio card? please advise.

thanks.

-cody