Scroll makes text disappear

Hi,

I just installed the plugin and placed it in my header.
When doing a search it works fine, but then when scrolling down, NOT using the scrollbar, but the mouse is in the results, the text area gets to become about 10px wide

See this image for what I mean:
http://img96.imageshack.us/img96/443/p6uu.jpg

http://ww.wp.xz.cn/plugins/ajax-search-lite/