Joinery company Galiform is the best performer after it said it has performed well after a slow start to the year due to the prolonged cold weather.Music retailer HMV reported a sharp decline in fourth quarter like for like sales but said it was on track to meet full year forecasts. The video game retailer Game also falls. Bus and train firm Go-Ahead has come off the rails slightly after it said overall trading in the third quarter was in line with company expectations while its full year outlook remains unchanged. National Express is lower too.Aviation services provider BBA Aviation descends after it said group revenue was flat in the first quarter to 31 March 2010.FTSE 250 - RisersGaliform (GFRM) 83.40p +7.61%GKN (GKN) 145.50p +4.38%Melrose (MRO) 238.60p +4.15%Inchcape (INCH) 34.50p +3.51%Travis Perkins (TPK) 867.00p +3.46%Tate & Lyle (TATE) 448.90p +3.41%Greggs (GRG) 486.90p +3.27%Morgan Crucible (MGCR) 206.40p +3.20%Rightmove (RMV) 690.00p +3.14%Daejan Holdings (DJAN) 2,403.00p +2.69%FTSE 250 - FallersHMV Group (HMV) 72.50p -8.34%Wellstream Holdings (WSM) 600.00p -8.05%Gartmore Group (GRT) 155.00p -5.49%BBA Aviation (BBA) 204.40p -3.45%National Express Group (NEX) 241.50p -2.23%888 Holdings (888) 80.00p -2.08%Lamprell (LAM) 242.10p -1.98%Tullett Prebon (TLPR) 338.80p -1.91%Go-Ahead Group (GOG) 1,446.00p -1.83%Game Group (GMG) 93.90p -1.73%