They make the BEST mice. I am an extreme PC user since it's my business. 14 hrs a day, 7 days a week, 365. I POUND on them, drop them, spill crap on them, and they STILL work. Unbelievable. I've used their conventional mice, trackball, and more recently that 'half egg shaped tall one' with 2 main buttons and a thumb button (it has no name) with a ball and cordless. I now use the MouseMan cordless optical. But....I think they have software issues. I have always had one problem with BOTH of their cordless mice I have used. Does this happen to anyone else?? Every time I 'copy and paste' text, regardless of the size, when I try to move the cursor to the place where I want to 'paste' it, the cursor 'stutters', hesitates and moves VERY slow for a few seconds. This exact same thing also happens when I'm waiting for a webpage to download. The cursor does the same thing. Once the page is FULLY loaded, the cursor is fine. This happens on DIFFERENT COMPUTERS, different hardware, (same OS, win98), and i have tried different software versions for the mouse. I've tried changing channels, and locations for the receiver. There are no other cordless devices around. This is SOOOOO aggravating that I just might have to try the MS cordless optical intellimouse. Does anyone have any ideas on how to fix this or what could be causing it?