You're lucky I was passing by as this forum is rarely visited.
You would be better re-posting in another forum. Since you're using XP the Windows XP forum seems best;
But there are others in the list on the left.
Be sure to give full details, eg what media player are you using, what type of video, does this happen on all videos? Also tell us your system specs, like memory, graphics card, and so on.
I will lock this so that you can concentrate on your new post.
Windows XP is my OS HP pavilion XT978 model number, when trying to enlarge any video, it just go to a blank page, so whend i hit excape it just goes to small video, help.