Cubase3sx gives this msg after TI update to 2.7.5

[Acidman]

I just upgraded my TI to 2.7.5 and wanted to check it out. I load a song in cubase3 in which I had used an older OS (2.5.4 or something), and I see this message:

"VST Mixer Warnings
===============================

This mixer configuration expected "Virus TI" to have 2 Stereo,
-> The instrument currently has 3 Stereo,
-> Change the instrument configuration before reloading this setup without saving
==============================="

I'm no expert at cubase3, so what exactly am i suppose to do so it recognise all usb's in my older songs?