Help please - GB won't work - Midi driver conflict with Snow Leopard

I use Snow Leopard 10.6.8 on my MacBook Pro. Ever since I upgraded to this version GarageBand won't work. When I try to launch it I get 3 or 4 pop up screens saying GB has detected software midi conflicts please update your midi drivers. If I click through these and wait for 3 or 4 minutes, GB does open but it takes ages to change anything and it shows there is no Core Audio. It also won't 'Play' an already recorded track and there is no sound for anything. I have several plugins Including Line 6 Podfarm, and the midi drivers for Melodyne and record through an old Tascam US122 with midi.
One driver for the Podfarm was automatically put in an incompatibel Software folder when I upgraded. I put this file in Trash and updated my Podfarm drivers but it's made no difference.
In GB Preferences it shows the Tascam US122 as my recording/playback and my midi device, but also 'no midi device detected' even though it is connected. There are no driver updates for this old Tascam model.
Everything still works perfectly in Melodyne. How can I find out which driver(s) are involved in the conflict for GB? I have no guarantee that even if I buy a new Tascam interface, or any other brand, that GB will work, even then.
Is there a way to identify which driver, or drivers, are the problem? Surely that is not beyond what a MacBook Pro can do?

I should have mentioned I use GarageBand 2009. I've read other posts all over the web where people have trouble with this Tascam US122 but with the older Leopard versions. I had no problem with ordinary Leopard 10.5.6 - it's only since I upgraded to Snow Leopard, and it's only in GB.
I've tried a powered hub which has helped others, but doesn't help with my problem.
I reallly only want to know which driver/drivers are the problem.
Then I can work out a solution, even if it means buying a new interface. So long as I can't identify what the problem is, I'm not prepared to buy new equipment that might make no difference at all.
Bad luck with your electronic drums macuserrich - it's annoying isn't it!!!!

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http://discussions.apple.com/thread.jspa?messageID=10909012#10909012
Substitute 2880 for RX580:
Make sure that you have completely removed the Stylus Photo RX580 driver, then install the new driver from System Update:
1. Power off the printer
2. Open System Pref. and Print/Fax
3. Highlight the RX580 printer
4. Click on the ""-"" sign
5. Close Print and Fax
6. Open your Mac's Hard Drive
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8. Open Printer and delete the EPSON Folder
9. Open the PPDs folder find the Epson Stylus Photo RX580.gz and delete the file
10. Close the PPD and the Printer folder
->11. In the Library folder, open the Caches Folder
->12. Delete the Epson folder
->13. Restart the Mac
14. Power on the printer
15. Click on the Apple Icon and System Update
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Michael Brown1 wrote:
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One more question, debi.
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Regards
Léonie

Help please - GB won't work - Midi driver conflict with Snow Leopard

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