Um. Actually, the vegetation you should have installed into VuePro are already with you, on the resources CD. You still have to purchase the species from E-on, to get the registration number for that species, but the actual file came with VuePro. The plants have had some work done to them regarding the wind dynamics effects, and the Vue4 plants don't work in Pro. You should be able to go into the vegetation folder and delete out =all= the files that reference the new species, and things should work again. Install the plants on the Pro CD's, register them with the numbers you got for the purchased plants, and you should be fine.