Logic Pro 8 Bounce dialogue slow to appear

Just upgraded to SnoLeppard, and now (although not necessarily connected) L9 is taking much longer to offer up the bounce dialogue. Maybe 5 seconds rather than the former 2 seconds. Anyone else getting this, or got any ideas about it?

Roger Jackson
Film Music
Oxford UK

Logic 9 on 2 x Quad core 2.6 Mac Pro, 12G RAM. Recording to internally mounted disc. MOTU 828