>>> It's an older PC, 1.4 Pentium, just under 1GB of RAM (768MB).

That's likely the issue. For the speedup Realtracks feature, BB is doing 2 things at once. It is (1) playing back the RealTracks, while it is also (2) assembling them in memory. So a slow hard drive, or a slow CPU (e.g your 1.4 Pentium), could result in item (2) taking up most of the CPU time. In future we might have a setting for the speedup feature, to see if it can be throttled down on slow machines, but for now, you should disable the speedup feature.

I program Band-in-a-Box on an 3.5 year old HP Laptop (XP, AMD Turion 64 single core) , 1 GB RAM), and it works fine on that.


Have Fun!
Peter Gannon
PG Music Inc.