I recently purchased a Mini DVI to HDMI cable to connect my iMac to a 32" Samsung TV. My main purpose was for the editing of video's using iMovie. The connection worked fine and I was able to view the clip(s) I was working with on the TV. I was also able to change anything I wanted in the clip using iMovie. The only problem was that every other application (other than iMovie - example mail, address book, excel, etc.) that I attempted to use was now 1/2 to 1/4 of its normal size. Also, there wasn't anything I could do about it using "system preferences". Once I disconnected the HDMI cable, everything came back to normal. Is that normal for the mini DVI application?