Yes the path is relative and seems correct. See below:

<img Command="JustifyLeft" width="20" height="20" class="CuteEditorButton" src="/CuteSoft_Client/CuteEditor/Themes/Custom/Images/left.gif.aspx" title="Left Justify" />

If I add the domain name before /CuteSoft_Client/..... and remove the .aspx appended to the image, the image appear in the browser. So I am certain all the graphic are present on the server and that they are not corrupted.

I know that the .aspx suffix is a weird thing to have at the end of a graphic and I don't know why it is there, but it is also present in the source code of the page on my local centre and that doesn't stop the icons from showing.

W