Two of Ohio's four casinos bounced back from significant revenue decreases in April and posted gains last month, while the other two continued to see drops in profits. A report released Friday by the Ohio Casino Control Commission shows that revenue at the state's newest casino in downtown Cincinnati increased from about $17.8 million in April to just over $19.6 in May. That's a 10 percent increase. Cleveland stayed almost even in May, with revenues of $20 million. But that was a significant recovery from a nearly 19 percent drop in revenue it saw in April. Revenue at the Columbus casino decreased by more than 7 percent to about to $16.7 million, and Toledo's dropped almost 4 percent to $15.8 million. The casinos have drawn almost $688 million since opening.