Remember that VL6 RC 1 is a RELEASE CANDIDATE. That means you can expect bugs and rough edges. We hope all of them will be squashed when Final comes out. I'm not an insider, but I expect we'll have another release candidate before VL6 goes final. It should be very soon, too.
I'm writing this from 5.9 and I have VL6 RC1 on a desktop computer, but much as I like 5.9, I think VL6 is a big improvement. So unless you plan to replace 5.9 with 6 when the final version comes out, I suggest going into some detail on your problems and forum members can probably suggest solutions.
I prefer the text installer and used the GUI installer just once. I like text installers. You might try using the text installer and see if it works better for you. I believe you get to it by typing
at the prompt when the installation CD boots. (I'm not sure I remember that correctly.)
I've been using VL for years and I totally love it!