Mouse behavior after 10.7.4 upgrade

What is HW? SW?

I'm guessing that UG=upgrade. But when you use acronyms, it is customary to have each letter represent, and denote a single word, not a syllable.

edit: Ahh, maybe you mean SW= Software & HW=Hardware.

It's probably software. Can you perform a Time Machine restore, or boot to a cloned image? This would definitely rule out hardware.

I am having this problem as well. When I click on menus they don't stay open, sometimes when I click on something it acts like I double-clicked it. And I tried dragging a single file and for some reason the cursor was highlighting everything else in the directory as I moved the file, so I couldn't just drag the single file. My mouse has been acting very odd since the 10.7.4 update to my iMac.

I also have this problem with 2011 macbook air. This is an obvious bug with the update. Apple needs to address this. It makes it almost impossible to use when it randomly clicks on stuff while dragging cursur around screen.

This is happening w/ the built-in trackpad on my MacBook Pro.

Randomly clicks when I haven't - randomly drags folders, images - anything.

Randomly highlites parts of web pages.

Madening.

I feel its getting worse each day. Its absolutely auwful. Makes computer completely unusable. I have had nothing but problems with 2011 macbook air. Should ahve kept my macbook pro

Just to express that I have the same issue with the trackpad acting as if it is controlled by an invisible hand! Using a MBA '11.

Some things I noticed and might be related to the problem, but mostly this is speculation. Increased problems when a JAVA app is running, same with flash. Also something called HIDD is acting up in activity monitor. (Hidd controls keyboard and trackpad).

Issue only arose after the update to .4, have sent feedback.

This Worked 4 me

http://support.apple.com/kb/ht3964

I also zapped the P ram

I reset the PRAM & SMC to no avail.

Every day seems to be different. However, today I looked at activity monitor. I had java process taking up a ton of memory and cpu. I thought it might be the malware but ran checker and it said no. Reinstalled apples java update to eliminate malware. Then I redid the pram and smc reset. Things have been much smoother since. Like I said before, sometimes it works but when it goes bad it gets really frustrating.

Not even 30 seconds later and its back. Ive never had problems with apple until I got a macbook air. It has been a constant hassle of issues and updates. Please fix this apple.

Has anyone found a fix for this? I've tried absolutely everything :/

I stopped using Java and the problems have disappeared. My 3g stick came with some java app for connecting, now I'm connecting thru sys.prefs. So for my trackpad it is very clear that the problem was with Java.

This makes sense as flared up after 10.7.4 and the java security update. However I am using program that uses java with no alternative for awhile so I camt verify yet. Would seem reasonable that apple could address this issue?

I think that this is Oracle's responsibility, since Apple is no longer maintaining Java. (right?) Also I downloaded the update from java.com not via software update. (if firefox causes the trackpad to go nuts, we don't ask apple to fix it)

When I go to java's site and download java, it refers me to Apple's software update. Therefore I would assume apple is still in control of updates to Java. Yes, its Javas problem and they need to send out a fix, but apple will have to push the update out.

Apple supplies their own version of Java. Use the Software Update feature (available on the Apple menu) to check that you have the most up-to-date version of Java for your Mac.

If you have problems with downloading, installing or using Java on Mac, please contact Apple Technical Support.