Bridge Building Game - educational and addicting as hell

[FattyBoomBatty]

I am on level seven, had to stop and study for a midterm, but it's a fun game, 7 is much harder than 6, only because of the size and time required. Does anyone else have a slow-responding problem? I have to sit and wait for the mouse to move when I move. It could be my old, slow laptop, too, I guess.