Review NAVAN 21-MAY-2000 Noel Meade and Paul Carberry combined to record an opening race double sparked off with former flat campaigner Fnan (3/1-5/2) in the opener.Formerly trained by John Dunlop when scoring four-times in Britain, the gelded son of Generous was pushed along on the run to the 2nd last but was back on the bridle over the last to score easily.'He didn't jump great but when he does get his jumping right he'll be real good,' summed up the winning trainer. Canon Can (2/1-9/4), winner of the Queen Alexandra Stakes and Doncaster Cup for Henry Cecil, followed up in the next to complete the Carberry/Meade brace. Enterprising (2/1f), who was lying 5th at the time, crashed out at the 3rd last tragically breaking his neck and bringing down the chasing Buck Hill Lady and Norman Williamson.Barry Geraghty, who partnered the ill-fated Enterprising, stood himself down for the remainder of the afternoon along with Williamson. 'I got a gash to my backside which may need stitching,' reported Geraghty while Williamson (sore shoulder) hopes to be back riding at Roscommon.Camden Venture responded gamely to Mark Sullivan's urgings to head The Oozler close home in the 3m handicap hurdle.Sullivan was later penalised for using his whip excessively and picked up a 3 day ban after scoring by a length on Seamus Fahey's gelding.David Casey , who made all on Cathal McCarthy's Colins Double, completed a 34/1 double aboard Paul Nolan's Torduff Boy in an incident-packed novice chase.Frostbitten, stable companion of the winner, slipped up on the level after the 4th last when travelling well while Martys Step, who was alongside the eventual winner, unseated Fran Flood at the last. Mary Whelehan and David O'Brien (18) teamed up record their first success when Raheenboy (10/1) landed the Hunters Chase.Conjure Up (5/4f) fell at the second fence while Uncle Arthur, who was in with every chance, was unlucky to be carried out by a lose horse at the last....