I am having a problem with some users on the network not being able to use the date picker control in a Sharepoint list. I am using the default built-in date picker control, no customized code. When these users click on the little calendar icon to pick the date, instead of being presented with a popup calendar to pick from, they just get an empty white popup box. I have searched and searched for a solution to this problem and can find nothing. I've tried updating browsers and java and all that fun stuff. Still to no avail. I have basically duplicated the versions of browsers and java on computers that can use the date picker with those who cannot. It still does not fix the issue. I'm pulling my hair out.. If anyone has some advice, I'd appreciate it.