I played a game with some buddies over LAN trough GameRanger. Half an hour later there is a timing error and the game stops. If you load the automatic saving, then it takes off after five minutes. How to fix it?

PS Sorry for my English. I use Google Translate.

+1 im playing with my dad on LAN and he constantly crashes and has out of sync errors on XP3. weve tried the hardware acceleration fix, windows 98 256 colors compatibility, the whole nine yards and we still have game crashes every 20 minutes or out of sync errors every 5. its obnoxious.