Header 1 pixel misaligned

[carwash]

I've specified a new location for my header image on my forum. To my dismay, it doesn't align properly with the table below it. Why is this? How can this be fixed?

You can see the problem in the attached image. All help is greatly appreciated.

[carwash]

Does anyone have any advice on this please? I've recently discovered that this only affects firefox and not internet explorer....

[peterska2]

What is the content of your header template?