Quote:

...and Echo Indigo on my laptop.



I also have the echo indigo card on my laptop. The ASIO drivers from Echo DON'T work with BiaB at any buffer settings. I don't know why but they don't. However, Asio4All works just fine with very low latency, about 6ms. So i suggest you download Asio4All and install and use it. Or you could use MME drivers if you can accept 130ms latency or so.

As to the problem of the 'in use by another program' message this is a known issue when you have no other soft synth than GS Wavetable installed. If you have another synth select it. If not there's a solution here. Scroll down to 'Common Problems and Solutions'.

Hope this helps.

BiaB 2013 b366, RB 2013 b4, WinXP Pro SP3, Toshiba M70, 1.8GHz 2GB RAM 100GB HD. Focusrite Saffire 6 USB, Ketron SD2.BiaB Wiki