Nope, doesn't make sense lol. Are you saying the internal hard drive is empty? Anyway, also from that site :
* First, try a soft-reset of the phone - Do this by pulling the battery out for a minute, then reinserting it. When the phone restarts, it should close down all running applications, which may free up some space. It's also worth removing the memory card, if your phone has one.
* If that doesn't help, try to restart the phone in "safe mode" - This causes the phone to load as few apps as possible at startup. To do this, take the battery out and reinsert it (to perform a soft reset), then hold down the ABC (or pencil) key, and while holding it down, start up the phone.
* Sometimes, startup problems are as a result of a battery/power problem, so try starting with your phone while it's powered by the charger lead
As a very last resort, you can format the phone and start again - This will remove all data, and you'll have to restore your phone's information from a backup.