regarding sync the only one i can think of regarding graphics cards is making sure the monitor and card are going at the same refresh rate
i had a quick look under the hood of my S3 onboard card by right clicking on the desktop and selecting propperties ... then had a gander from there, nothing jumped out at me but it might be worth a look (unless its the same thing brought up from the different route you took)
i did see hardware acceleration though if that helps
i had a quick look under the hood of my S3 onboard card by right clicking on the desktop and selecting propperties ... then had a gander from there, nothing jumped out at me but it might be worth a look (unless its the same thing brought up from the different route you took)
i did see hardware acceleration though if that helps