Try a manual firmware update.
Under Settings/System Settings/Info you can see the Version, whether it is 1 or 2.
Download the manual firmware update from this post for your version. Use the All Regions link. If you couldn’t get to Info, download both and try one at a time.
http://forums.sandisk.com/t5/Fuze/Sansa-Fuze-Firmware-Update-01-02-31-amp-02-03-33/td-p/139175
You’ll download a .zip file. Unzip it onto your desktop. . Connect the Fuze to the computer and drag fuzeA.bin onto the driveletter your computer assigns to Sanza Fuze. Disconnect and the firmware should re-install itself.
By the way, Kompranet sounds pretty sleazy. No one is bothering to write viruses that attack the Fuze.
