Samsung LN-T4061F 40 in. LCD HDTV "skew image" Questions

My tv has developed a problem My tv has developed a problem whereby the upper right side of the screen is distorted when I first power up. After about 20 minutes it clears up. The distortion is in the

...in menu to see if the set has a convergence adjustment in the menu--if older set and colors are skewed or 3d looking the convergence circuit needs repair---got a model number?  If a Sony ...

...ratios, the TV doesnt auto-format, and I seem to be unable to manually adjust that. The result is a skewed image. Is it that the Bravia doesnt support other formats through it's hdmi port? (In fact ...