WIN 98 Error

The machine's specx are celron processore with 32 megs or 98 megs of ram . The client has told me that when the go to play games in windows by game i mean solitar and mind sweep it lets them play once than gives them a error ( don't have error handy) then they have to restart the machine to get it to work angien . I'm not sure but I think that it could have to do with the ram amount that in the machine