Could be that keyboard mapper problem. Somewhere in Windows, you can set up hotkeys for various things. Somehow, one may have gotten set for your shift key. Does it happen for both shift keys?

If that's it, find the hotkey mapper and remove them. If I knew exactly where it was, I'd tell ya, but I don't :( Check Windows help for specifics.

well, I started having more problems with it, so I restored my computer, and strangely enough that fixed it. perhaps there was something wrong with the driver *shrugs*

I have a wireless mouse and it's great,
i love to get back to this computer, and use this mouse.
Why do wireless things suck? they remove the cables that tie you to a desk. personally i love wireless technologies.

I don't use anything wireless on my PC, but I'm not apposed to it in any way. I think the big thing might be interference issues with all the wireless stuff around. There's also the environmental issue since the batteries will eventually end up in the dump... so I guess I am somewhat apposed to it..