10.7.4 Install/Update issue

I use software to update my Mac every time. I check it a week or so ago and see the new update is available and I try and upgrade. The update appears to download on but then after my mac reboots the update fails to extract.

I figure the issue is temp one, so I wait and try again today. I still cannot upgrade. Anyone have a clue what would cause this? Or how I could fix this? I have never had a single issue with my MacBook, I just cannot figure this one out lol

Thanks in advance for any assistance!