Celestia 1.2.5pre5/6 Time bug? & Screen syncing problem

[Don. Edwards]

I can't be sure wether its Celestia or perhaps my computer but if I speed up any planet after a few seconds it locks up and stops spining. I can still navigate and grab the planet and move it arround and so forth but all rotation stops. The only way to fix it is to shut Celestia down and then restart it. If I speed things up again it will repeat the same thing. Any ideas?
Also Chris is there any way to reimplement the old way of the menu poping up as in pre 1.2.5 builds. The fact that my monitor has to resync every time I need to go the menu is getting a little anyoing. The older builds didn't do this. You simply moved the cursor to the top of the screen and the menu would apear. Now when you do this the screen goes dark and it resysncs to draw the menu and then resycs again to go back to viewing Celestia. There has to be a more elegant way of doing this.