Device memory is full??

[TJenkins]

This is my first PDA and I have had the pdevice sense launch. This is my second TP2 but my overall experience has been good. Recently I have been getting warning messages saying that my memory is full and the device cannot download incoming messages. So I move all my documents, pictures, video, music, and notes to my memory card. I uninstall all apps and reinstall them on my memory card. I delete ALL my text messages and saved enough space for my device to download all my text messages that it couldnt reviece before hand. Well I am having the same warning a week later but I dont see where I can make any more space. I have no content in my documents folder and everything I use is on my memory card. I just dont understand what is taking up all my memory.

What else can I do?

FYI the warning message also says I need at least 1.5MB, and my device says I have a little over 5MB of free space...Help