Planetgen isn't starting up

[Lewx_Lucas]

I've got Planetgen 4.05. It is indeed loading, but it is not starting up. And no error icon appears.

[Worldtree]

I know nothing about this program, but do you have all of the software requirements?
http://www.microsoft.com/en-us/download/...x?id=34429

[stevebowers]

I've just loaded it, and it works okay for me, but looking at the results I'm not so keen on it. The end results need a lot of post work to look acceptable as planets. So even though I have recommendded it in the past, it really isn't up to scratch.

A better program is Fractal Terrains, which is available as a free demo version, which you can use and then capture the result quite easily.
https://secure.profantasy.com/products/ft.asp

Fractal terrains allows you to model a world, then raise or lower the terrain in various areas to tailor the landscape to your requirements.