Damaged my system?

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Hi, I installed the software for an audio interface, Native Instruments Audio Kontrol 1, after a lot of difficulty (you have to get different software to the stuff which comes in the box for Snow Leopard). It was working more or less but I had a few questions so I posted a thread on their website. They advised me to uninstall and reinstall. However when I did this things got much worse, the sound breaks up if I try to control it with midi, and it crashes Ableton Live.

Ok, I have uninstalled the midi mapping software and things seem to be ok, I can use the interface without midi. There was a brief glitch concerning the driver but it seems ok now.

My questions basically are

1. Why would a programme work before, but not after a reinstall.

2. Could any of this have harmed my operating system or Ableton Live

3. In their manual it says something like do not try to install if it's already installed as this may harm your system - oops, too late! Can installing a programme when its already installed really do any harm?
 
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How did u do the uninstall? Try the sequence again using Appcleanerand then do a fresh install.
Probably would not have harmed anything but could have confused the situation.
 
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check for a .plist file in preferences folder; I would delete it and reinstall the app and it should be all good (hopefully)
 
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I did the uninstall manually, they gave a list of things to delete. I also did a search to see if there was anything else. I downloaded Appcleaner, but I dont think I have anything left to delete, its just that when I install, its a pile of junk.

By the way, the same company sent me an update for a different programme. Im not sure if I should uninstall the old one or not before running it.
 
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As a clean up sequence i would install the old one, then use App Cleaner to remove it then install the newer version just to be on the safe side. After that i would repair the permissions as well.
 

chscag

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