25f with a line on the screen
 

Hi everyone. My A1 arrived today and i've been doing some tests. But i found a very strange situation. Under 25f in low light i get a line in the middle of the screen (doesn't happen in 50i).
Any one noticed anything similar?

Here's a link to a screen capture: http://www.pichotel.com/pic/2999dHTAP/102757.jpg

And another thing, after only one hour i got a message saying "heads dirty. Please use cleaning cassette".

Any thoughts?

EDIT: I also don't get the line in SD mode even in 25f.

Hi, It looks like a picture made by a phone, never saw this before. What happend after you cleaned the heads?

Didn't clean them yet, I don't have a cleaning tape. Do you think the line in the center is from the dirty heads?
The image is magnified and saved as low quality for web. That's why is so bad.