I have just installed visio 2007 on 12.04 ubuntu under wine 1.5 and it runs no prpoblem

However, when I try to 'activate' the visio license I am told that there is a 'communication error'
I assume this means that wine cannot see or use the network connection?
Can anyone advise on how this can be remedied? I only hav 20 further launches of tha visio app before it dies!
thanks
/M