I have the same error with the v-key and escape key, but besides that it runs smooth under XP (GF4 graphics card and 704MB of memory in PC). But it still shows 1fps in the top left corner.
i have the same error's with the keys, and it also runs smoothly on my pc under XP(weir intel graphics card, 512 MB memory, 1400x1050), but it looks terrible... is it suppose to look something like the screenshots on the website? if so, there is something wrong...