Anyone else having these problems with map downloads?

(1) On the N800, if I specify a large download set (big region, high zoom, whatever), all goes well until the screen blanker kicks in. Touch the screen to wake it up, and the download appears stalled (no action on the progress indicator). MM will continue auto-downloading as needed to refresh the display while I frob around, but the batch goes nowhere until I restart it.

(1a) Settings -> Misc -> "Keep Display On Only in Fullscreen Mode" is checked, but my N800 display still blanks, fullscreen or not. AC or batttery power makes no difference. Am I missing something? I can sustain a long download only by tickling the screen periodically to keep it awake. This gets tiresome fast.

(2) I originally set MM up with mt[...]v=w2.29 in the Google Maps (streets) URL, and that works fine. However, the same exact string fails in Ioan's winmapper. It creates the map directory structure on my Windows box, including 0-byte file entries at each folder which vanish shortly after they appear. Sniffing at current Google Maps output in Firefox, v=w2.37 appears current, but that fails the same way as 2.29.

On the topo side, kh[...]v=11 does the job, despite my later noticing v=13 in live output. But I really want those streets.

Suggestions, anyone?

(P.S. Once again, this program rocks! Ordered my GPS today...)