UI: Better radar lines

I don't know why, but all radar's lines is shifted to bottom right corner.

Before:
![screen076x50](https://f.cloud.github.com/assets/3616568/1344470/28373bd2-3681-11e3-9af0-6677641871b4.png)
After:
![screen075x50](https://f.cloud.github.com/assets/3616568/1344474/336fcb72-3681-11e3-9e95-5a7cb365c1da.png)