Best thing to post a screenshot, so we can all see instantly what you're talking about. Excessive dome shape appearance can happen with mod conflicts. If you're using JSGME for mods, simply use that utility to export the activated mods list and paste to the forum here. Both that and the screenshot will help us greatly in identifying the problem.
If you're a bit unsure of that then no worries at all, just say, we'll get you sorted Herr Kaleun.
