PT 7.3 with Native Instruments plugins HELP!!!!

[kindsounds]

As many of you that use NI plugins know, they have not caught the ball on the whole Leopard thing at all yet. I have upgraded my PT to 7.4.1 and have had tremendous problems getting audio dropouts, latency beyond the confines of the term and GR3 won't work at all. At first they told me to go back to Tiger, until I told them the same problems were being encountered under that OS as well. After several visits with NI tech., they have decided I need to go back to 7.3. Is there anything I need to do other than just reinstall 7.3 to go backwards. I sure hope this helps, my studio is virtually shut down because of this.

Any input is greatly appreciated!!!!!!Thanks