I have a Panasonic DMC-TZ3. Lately images appear to be vertically aligned in the view screen but when downloaded and viewed they are not aligned meaning buildings etc look like they are tilting. I have had this camera about 6 years. It has worked fine until now. Do you think it's me or the camera?

It's geometry. If you tilt the camera to get all of a tall building, the top of the building is farther from the camera than the bottom. Objects farther away look smaller than nearer objects. Thus the top of the building looks narrower than the bottom and the building looks like it's falling over backward. You see the same effect when you look at a straight road going off into the distance; the road gets narrower the farther you look. The human brain is wonderful at automatically compensating for this effect but the camera records the scene as it is.

Professional architectural photographers get around this problem by using expensive lenses which shift, allowing them to shoot up while keeping the camera pointed straight ahead and level. The rest of us solve this problem using a combination of two techniques. One is to keep the camera level and either zoom out or back up to get all of the building in the picture and then crop out the bottom. The other is to use a photo editing program with perspective correction capability. Programs such as the GIMP and Photoshop allow you to "stretch" the top of the picture.

It's called "perspective"