Nessus, BT4, and Virtual Box

Nessus seems to believe it should mess with everyone's browser as follows:

<style>  
body {    
 margin: 0px; 
 overflow: hidden;
 background: #2b4e67;
}   

What's with hiding the scroll bars via "overflow"??? I had been running BT4 in VirtualBox under OSX, and the default is 800x600, not enough to display nessus. So, I wanted to make the screen bigger, no small feat. First

VBoxManage setextradata BT4 CustomVideoMode1 1280x1024x16

then add

vga = 0x200 | 0x160

to /boot/grub/menu.lst. Finally

cp /etc/X11/xorg.conf-vesa /etc/X11/xorg.conf

and reboot. Quite the complicated incantation for something a developer shouldn't have done in the first place.
<rant>
Why do developers do stupid things like specify overflow, point sizes, etc.? Do they really believe we're all going to run on a box exactly like theirs? What if I wanted to run the nessus client from my phone?
</rant>