I was having trouble with the old VGA cable I was using for my monitor. So I got a new one off of Amazon real cheap, it says it's High Res HD15 on the posting I got it from. However when I boot into Kubuntu or Ubuntu, the resolution is wayyyyyyy too low and the proper one is not appearing in the settings. Also, the GRUB menu is a different color (dark blue vs. light blue) and the resolution is smaller.
The proper resolution is displayed in Windows.
Is there any way to fix this? do I have to buy a new cable?