When I tryed it recently *old version bundled in 3.1 avlinux* it seems to not respond to keyboard commands btw i am using mouse keys

I've just downloaded the one from the site and it seems to work fine for me (on ubuntu 9.10 - I don't have an AV Linux install at the moment). It should respond to arrow keys to shift the 'focus' - indicated by a red highlight - onto different GUI controls and the up / down arrows should then increase of decrease the control value - this should work without mousekeys, although if you have mousekeys running I suppose there could be some conflict where it might be stealing the key presses, which might also be a window manager issue. Also, make sure the GUI window has the focus when you are driving it using the keyboard.

I am loving the Valve Overdrive Preamp. Does it care if you run a mono signal into only ONE side?

Is there a mono version?

It doesn't make any difference if you just use one side - the only thing that might be gained from providing a mono version would be slightly less CPU usage, I'll look into that and see if it can be done sometime.

What if you run two completely different signals into each side. Like vocals into one, and bass guitar into the other?

Yeah, a mono version would be cool for less CPU usage.

BTW, I was so excited to install your plugs when I purchased them (like the MKII Graph) that I didn't even notice the documentation PDF in the ZIP file. I won't need to ask those silly questions anymore.