Using Vista or XP? That error is a generic Intel Graphics Driver failure. Which card/chip do you have? The Intel 82945G seems to have problems with a lot of games. Are you doing anything particular when it happens or is it random? The latest update has caused many people video issues. You might try to roll back the driver and reinstall it (boy, I sound more like D every day). Their website lists the following for Intel based video cards:
Intel® 82865G - Drivers available for XP
Intel® 82915G Express Chipset - Drivers available for XP
Intel® 82945G Express Chipset - Drivers available for XP and Vista
Intel® G965 Express Chipset / Intel® GMA 3000 - Drivers available for XP and Vista
The following 3-D video cards may cause serious performance issues in Pirates of the Caribbean Online and are not officially supported:
Intel® 82852/82855 GM/GME Graphics Controller
The following 3-D cards are older, and have not been tested -- it is unlikely that they will work well with Pirates Online:
Intel I-865
Intel I-845
Intel 82810E Graphics Controller
The full list of supported video cards can be found
HERE as well as links to updated drivers for the different cards. Other than that, I am afraid i have no idea. Good luck.
Loot Hard!