All, If you're reading this post, THANK YOU! Here's what's going on. About a month or so ago I noticed that my mouse was double clicking instead of a single click, sometimes is unresponsive (I'm clicking the actual mouse, but the computer isn't acknowledging), closing two tabs in safari when I've only clicked to close one tab, opening two email windows when trying to compose an email (mac mail), and sending duplicate emails to recipients when I've only sent one (mac mail, linked to an exchange account, not sure if this is relevant). These are just the things I can remember off of the top of my head. At first, I thought this was a mouse issue as my mouse was old and I assume that sometimes that could happen. Our IT guys exchanged my mouse with a different one, but the problem persists. I had the IT guys at my desk on Friday, and I'm not kidding, they have got to think I'm crazy and/or making this up. My computer worked fine while they were sitting at it, but the minute I sat down it was the same. Basically, they tried one thing (I think deleting and resetting the mouse preferences) and then chalked it up to USER ERROR. (Our IT guys suck; if they think it will take up more than 10-15 minutes of their time, all of the sudden it's an impossible task that they just can't fix.) Well, I've done quite a bit of googling because there's no way it's me. And as it turns out, this is a problem that several people have encountered. I just don't see where anybody has found a viable solution to the problem. Any suggestions or ideas? EDIT: I'm posting this in the Lion forum because that's the operating system my iMac is using. Also because a majority of the research I've done points to a possible OS issue. If I need to post somewhere else, let me know, I will!