Oms Driver Help?, lost my driver..... Options

[robski]

I have a G3 computer ,upgraded to G4. I am running Jaguar. I recently installed Cubase SX,which I use with Reason 2.5 and all the necessary progammes and drivers for my complete set up. Including all drivers for my Evolution -249c keyboard.
Everything was working fine until I started up in OS9,to try and sort out a few Recycle problems. When I restarted in OSX I can't play anything through my Evolution keyboard.All the programmes recognise the keyboard is there ,but nothing will come through it. The multi display does not light up,so I know it's not working.
When I open my OMS set up it says it can't locate the OMS driver.
I've looked for OMS drivers for OSX and they don't exist. I've tried reinstalling the OMS drivers I have (the OS9 drivers,which I presume do work in OSX as it was all working fine previously) but it tells me they are already there. And there is a driver in my extensions folder.Can anybody tell me whats happened and if I'm doing anything wrong.BTW i've reinstalled the drivers for both my keyboard and my soundcard-Audiophile 2496.But that didn''t make any difference.
I'm at a complete loss as to whats gone wrong.Can anyone shed some light on this ,please!!
Cheers
Robski

[lepetitmartien]

If you have a USB hub… try some direct connection if the problem comes back.

Check also your mains… a defective electricity supply (peaks, too high or too low voltages, noise etc) can bring some real issues… My own USB hub (a real crap it is) is way better now I have a UPS online .

The switching back and forth 9/X can be an issue, but it's usually related to system "missing" on start up which can be addressed easily (option/alt on start up or install CD in and re-choose the start up disk, it su**s but it works)