just found the answer...phew!!!!
Press config, press parameter > (up) or < (down) untill it says keyboard after the bolder edit config text, the top left of the virusdisplay. You want page 2/5. it will say transpose under edit config. this will say +1 instead of 0.
A bit more detail:
All the blacks sharp keys are now (D, E, G, A, B) and all the white keys are now (C, C Sharp, D Sharp, F, F sharp, G Sharp, A Sharp) all the way up and down the keyboard 
Hi,
Bit of a random one, just have booted up my Virus TI2 Polar and Logic 9 and my keys have moved around on the Virus. All the sharp keys are now whole notes (black keys) and all the sharp keys are on the white keys.
I have done nothing to my virus or daw to change this.
I hope someone can help.
Many thanks
Adrian
