[Plugin: SimpleMap Store Locator] Internet Explorer Problem

Hello,

I have a problem with Internet Explorer on XP. The map does not show up. Tried it on Vista and it works. I have tested both with IE8. The crazy thing is that it worked some time ago before I have added more locations.

could it help to reinstall the plugin?

thx

http://ww.wp.xz.cn/extend/plugins/simplemap/