Joomla 1.5 Ajax Live search bar not displaying incorrectly in android

running Joomla 1.5. Ajax Live search bar plugin not displaying correctly in android only I have just noticed on my website that the ajax live search plugin is working perfect on pc and iphone. for example If we type wrx it will show results and if we type wrx followed by the enter key it will direct the user to a search results page however on a android if we type in the search bar it shows the drop down search results but when we push enter it does nothing. Also the background colour behind the search results text on android is transparent and not grey as it is on pc and Iphone Your assistance will be most appreciated Thanks