When I open LFS, it opens in a small window, so when I press SHIFT F4 to make it take up the whole screen it minimises itself to the toolbar.
Then when I click on LFS on the toolbar it opens for a second then minimises again.
The only way to stop it minimising again is clicking like crazy and hitting ESC heaps when you click LFS on the toolbar.

It done it for a few other games, so I dont think its an LFS problem, so what can I do to stop it?