Velaro's pro-active and automated chat requests are designed to leverage many standard and advanced capabilities available in today's browsers. Primarily, the chat window is created using various DHTML and frames directly within your web pages. This avoids any problems with today's pop-up blockers and ensures that your visitors always receive your chat requests.
In some cases, your webmaster may have implemented your web pages in such as way as to re-define the DHTML standard. Doing so causes Velaro (and most other applications that use DHTML) to display the chat windows incorrectly. To determine if your web pages are incompatible with Velaro, you must view the source of each page and look for a line of text that looks similar to the following:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
Typically, this text is located on the very first line of each HTML page. In order to correct the problem, simply remove that text from your pages. In most cases, this will have absolutely no effect on how your pages are rendered, and will result in Velaro's chat requests to start displaying correctly.