NokiaMaploaderSetupENU.exe downloaded and installed properly. 5800 XM can be recognized and "Delete maps from storage" really takes a while (seems working). After maps and voice selection (250MB), click "download" and shows progress few seconds, then popup "upgrading SD storage..." shortly.
Can these 250MB data be loaded within such short time? Checked the storage, only cachedatheader.cdt ( 471B), config.cfg (512B) and ffffffff.cdt (0B) were updatd according to time stamp.