I have the same problem with "stopping time" .. I read thru all the posts and as for the Magic fish #4.. I do have that one in both players. Like the previous posts.. One of my games is fine when I return. (with magic fish #4) and the other game I have sick and starving fish. Have not had any die yet.. but very sad shape when i turn the computer on.

I do click play first.. before changing speed settings.. and I do go back and make sure the "stopped time" stamp is on both players before i turn off computer. (obsessively, I check about 3 or 4 times.) Still, when I come back one player is fine.. but the other game the time has continued to march on..