Hi!
RC is a cool peace of software. I've only one problem so far. The UI is done in a way which makes it not ideal for netbooks. Netbooks have a low vertical resolution, so the big header stuff above the message lists really kills one. You need to make the message list very small or otherwise the message preview window is too small for reading.
It would be really cool if the next version of RC also looks and works good on an small netbook screen.