That makes it more likely that a graphics mode is being set that your display refuses to handle. You may try the following:
1- Boot from the Linux Mint installation DVD / USB
2- During the 10 second count down at boot, press a key to enter the Linux Mint boot menu
3- Using the down arrow key, highlight the second entry in the menu, "compatibility mode"--but don't press Enter, press instead Tab to edit the boot parameters
4- At the end of the line, but before the final double-dash (--), insert the text:
- Code: Select all
Then continue the boot.
Either it will switch to 1440x900 32-bit color mode, which is what the 868 code means, or you will get a message that this mode 364 (the hexadecimal equivalent of decimal 868) is unsupported. If it does give you that mode unsupported message, it will state you can press Enter to show a list of supported modes. Read the documentation of your Acer AL1916W and find a graphics mode that is both supported by your kernel as displayed on your screen, and supported by your display.
Hopefully you only need to fiddle around with this until you have installed Linux Mint and probably also installed the proprietary drivers for your graphics card.