Ok, it's a new laptop with 2nd gen Core i5 Processor, 6GBs of RAM, integrated video (i'm taking a guess and say it's an Intel HD 2000)
It shouldn't have any problems playing video files!
Those videos you're playing, you moved them from another PC? or you just downloaded them (via interweb, videocamera, USB)?
Because if you moved them from another PC, there's a slight chance that the videos may got corrupted on the way!
Now, are your drivers
Report back after checking that, please