Hello!

We are developing an application which shows live video images using a
camera and WinTV PCI capture card.
When the form(live image playing) size is small, it's ok.
However, if the form is bigger than 640 * 480, it is very slow.
The strage thing is that if another form (like Task Manager) is on top
of the live image area, it gets fast.
But once the form over it moves out of the live image area, it gets
slow again.

To sum up, the live video is fast only when something is over it even
if it overlaps only a small part of the live video area.

Has anyone experienced this kind of problem?

Thanks in advance.

Sam