Display and standby problems

[macosxp]

Okay I've got Linux Mint 5 (the main version, R1) running dual-boot with XP on an HP Pavilion desktop (onboard graphics) and an Acer monitor (20").
Now my problem is that whenever I try to put Linux in sleep/standby, it wakes up as soon as it falls asleep, and the display gets all weird -- like the screen shows up at normal res and colors and all but it keeps jumping sideways and back. How do I fix this? (Also how do I make it so it doesn't ask for a password upon wake up?)

On a possible somewhat related note, why is it that the display gets distorted when in the fullscreen slideshow in Google Picasa?

Thanks, I'm a newbie.

[macosxp]

Um, hello? Guy with a crazy screen problem here? Anyone have any answers?

Someone on an Ubuntu IRC said to "cat /etc/apt/sources.list and paste to paste.ubuntu.com then give us the url" but I don't know what that means or how to do it.