Trackpad won't release click immediately after upgrading to 10.6.4

Question

I haven't been having any problems with my 15"MacBook Pro and I Software Updated to 10.6.4 this afternoon. Now within the first 3 or 4 times I click the Trackpad after rebooting it registers the mousedown but refuses to register the mouseup.
Details:
- Using an external mouse is fine until I forget and click the trackpad once. After that no device, trackpad or mouse, will register a click.
- pressing the esc key will release the mousedown, but won't cause any new trackpad or mouse presses to be recognized.
- ONLY the trackpad causes the issue, but once triggered it affects all mouse devices.
- once triggered, putting the computer tom sleep and waking it up does nothing to help the problem, but restarting reliably fixes it until I use the trackpad again.
- switching applications via command-tab works fine, but mouse presses are still unrecognized after doing so.
This is a consistent, reproducible problem that renders my computer unusable. Any ideas would be greatly appreciated!
Kevin

Answer 1

I have the same annoying problem, exactly as you describe it. i suspect that the trackpad is broken and I think I had this problem before 10.6.4.
I found today that it is my trackpad that causes this. I normally use an external monitor, mouse or wacom pen and keyboard. Some stuff and papers were laying on my desktop and was over the trackpad and caused it to be activated. Later testing with my fingers on the trackpad cause the same situation as you describe.
Only way to get rid of it is a reboot.
Jan