i usually click on "solve another puzzle?" so my cursor starts under all ads, & use the 'equals sign' to center & start.
that's the weird thing, lurker---it's always after i've started looking over the puzzle and working on it that the darned thing appears---i've never been aware of rolling over it! just like when i was typing the first thread and it suddenly appeared, twice---and i hadn't gone near it---i was typing! (maybe my computer is possessed! ha!)