Lots of discussion going on lately about how the latest generation of laser mice from major manufacturers such as Razer & Logitech really weren't performing on a par with their price premiums. Well, it looks like Logitech is at least working on the problem...

"There’s finally some good news from Logitech in regards to laser technology in its G5 and G7 laser mice, and the surface tracking issues they were prone to. On November 24th, Logitech issued a firmware upgrade for G5, the wired counterpart to the cordless G7."