Ever since I upgraded my 2010 Macbook Pro from Mountain Lion to Mavericks, an issue has been occuring at seemingly random moments. Without warning, my trackpad will no longer allow me to click or use gestures, although moving the cursor around is still possible. Also, both Spotlight and the application switcher (cmd+tab) stop appearing, although the latter does function (but without any graphical feedback).
I've read some articles about a similar issue with the new rMBP's, so this might be related. Apple does seem to explicitly limit their acknowledgement of the bug to those new rMBP models, however. (related question)
The fact that Spotlight and the application switcher also die on me seem to indicate that it's a software problem. Rebooting my Mac helps without fail, but is quite inconvenient at times..
Is there a fix / solution / more elaborate diagnose available? Am I the only one or is this more widespread amongst the older generations of the MBP?