Virus C and Cubase SX2 Channels Problem [unsolved]

[Phat Tuesday]

I am using my virus KC in MultiSingle mode with Cubase SX2. It's the first time for years I've tried to do anything with MIDI so my problem is probably quite simple to solve (I hope):

Every time the sequencer sends "program change" data to the synth, regardless of the channel, upon replaying from the beginning the sound has changed in channel 1. This does not seem to affect other channels, just channel 1. In other words, if there are 5 channels and it gets to the point in the song where all five sounds are playing, the last sound the synth selects becomes the sound in channel 1! The sounds used in every other channel remain as separate sounds, as it should be. It's quite frustrating.

Also, any other controllers applied to channel 1 seem to affect everything globally. What do I do if I simply want to send, say, a 'release' controller message to one channel? I don't like it when everything has the same effects on it, it sounds silly.

I don't know if the problem lies with the Virus or with Cubase. Any ideas much appreciated!