Reply to VCI-100 Unwanted Midi Messages

I've had a VCI-100 for about a year and at many gigs with loud music the reverberations caused from the bass from the soundsystem has caused my vci-100 to bend the pitch in traktor.
HAs anyone else suffered from this problem?
I've resorted to sitting my controller on foam but there MUST be a better way than this!
Thanks for your help in advance!