1) Do you see a cookie warning at the top of the login page?
If so, this indicates that session cookies are not being handled. JetPlan.com uses session cookies to maintain user state information.

- You may need to enable cookies in your PDA browser.
- In some cases session information may be restricted or not supported by your PDA Service Provider.  
- Contact your PDA service provider for information on enabling session cookies.

2) Does the login button not give you a warning if you click it without entering a Username and Password?
The login button does a javascript check to verify that the form is filled in. JetPlan.com uses javascript to provide critical features within the site.

- Some older PDA's may not support javascript.
- Some PDA's may need javascript specificly enabled.
- Check your security settings to see if they restrict javascript usage.