Weird Issue With Virus Control and LFO that doesn't happen when not connected to laptop

  • Among a mass of issues i've been having with Virus Control and Protools 7.4, this one is driving me mad:
    I have a certain patch that has 'Channel Pressure' assigned to LFO3 assign amt. When my TI Polar is not connected to the laptop the patch plays fine with LFO3 kicking in when I push hard on the keys. However when I try and play the same patch through Virus Control in Protools7 3 LFO doesn't kick in when I push hard on the keys. I've tried removing the plugin and re-inserting, rebooting, etc but it won't work. Of course when I disconnect the Polar from the laptop the patch plays fine again with LFO. WTF????
    Any suggestions?