I have a 350 XL M. My temporary drive has 9 gigs free. The internal memory has 1.94 gigs free. I have followed the advice to free up even more space on the temporary drive. I even used a different drive with 500 gigs free as the temporary drive (I accessed this by changed the preferences in 'home' to reflect the new drive as the temporary drive.) 'Home" doesn't acknowledge there's enough space. I had removed all the files from the TT and downloaded a new application. The TT boots up but tells me I have no maps installed. And it won't allow maps to be installed, or any other files to be installed. Even though I have enough temporary space. Is this an unfixable problem? Thank you.