problems viewing pictures

i have a sony T200 camera with the high speed mem stick. pictures looked fine on camera. i transferred them to the computer and tried to view them. when the thumbnails appear the picture shows up for under 1 sec, then gets 3/4 covered up by a gray screen. i can't view them properly. Any help with this problem is much appreciated.

When you transfer the pictures, can you open them up from a folder?  Are there any errors displayed on the computer screen if you can't?  I am not familiar with that Sony model personally but I would lean towards a computer problem more than a camera problem.