Hi,
Have a TI Virus Keyboard, sounds great but spend about 5% of the time playing it and 95% of the time trying to get it to work in a repeatable or predictable way. Trying to get my head around what works and what doesnt work. Updated to 3.1 in the hope that some of the bugs have been fixed but now seem to be spending even more time debugging as things that used to work, now don't work anymore. One of which is the problem you have stated above. TI does not respond to changes made to VC arp controls. Do not have time to test every other control in VC so its still a mystery what works and what does not. Do not have any of the supported software but get same results when used with Magix software, Acid Pro, Mulab and other VST plugin hosts. These programs seem reliable enough when used with other plugins. One strange thing is that after the update to 3.1 the arp controls worked for a while in Acid Pro then stopped working.
Have you asked Access about it?