What do I need to worry about when running a VI for an extended amount of time?

Hi, I'm fairly new to LabVIEW as a program, but not new to programming as a whole.
I'm attempting to build a VI which will, hopefully, be run continuously and take data for weeks-months at a time.
I've never built a VI, let alone a program, which will be run continuously for so long, and so I'm unsure as to what I should be concerned about. I'm looking right now at optimizing, as best I can, memory allocation, algorithms, etc. but I suppose my main question is: What should I really be worrying about when programming a VI which will be run continuously for an extended period of time?
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In the structure of your VI's, be certain that you are not repetively creating things such as references to queues, or file references, or DAQ tasks, or anything without closing them. I was working on one application where a DAQ task was getting created every loop iteration and not being closed. It crashed the PC hard with a blue screen of death after about 20 minutes of operation, through debugging and before I found the cause, I saw I had about 80,000 to 100,000 iterations of a loop fairly consistently before the crash.
If this loop had run at a slower rate, it might have taken days or weeks before the PC would have crashed. It would have seemed infrequent and would have taken longer to debug because I would never have seent the pattern. If it takes a few failures before you discover the problem, it is a lot quicker to find the explanation after a few failures at 20 minutes per failure as opposed to 20 days per failure. The problem was eventually found in a subVI several layers down and fixed.
So if you pay attention to these things early enough, then hopefully they won't pop up and bite you weeks or months into a critical run of the program.

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I have upgraded my MacBook Pro 15 late 2011 to 8Gb RAM, now when I go to about this mac in it more info it doesn't show AMD graphics card as it used to before, it just show Intel HD Graphics 3000 512 MB is that a problem that I need to worry about?

I have upgraded my MacBook Pro 15 late 2011 to 8Gb RAM, now when I go to about this mac in it more info it doesn't show AMD graphics card as it used to before, it just show Intel HD Graphics 3000 512 MB is that a problem that I need to worry about?
and in system report >> hardware >> Graphics/Display >> it shows both grafics card listed.

Some Mac's when the RAM is increased the Intel HD 3000 integrated graphics will bump itself up to the higher video RAM it takes, this seems to be what occured.
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Do I need to worry about this?

It has been an interesting few months with my one year old 13" MBP. Lots of spinning beach balls followed by a hard drive crash. Apple was quick to replace the hard drive. And as I had everything backed up on Time Machine I was able to quickly restore everything.
All was good for a few months until the beachballs, freezes, and finder crahes began again. Made another trip to the Genius bar where they thought I might have re-downloaded a corrupt file from Time Machine. They cleaned my temp files and caches and things seemed to work well in the store.
When I returned home I had the same issues. They had prepared me for this. So a system restore, a re mount and re start of time capsule and everything seems to be working well. Speedy, no crashes, no freezes.
The issue is that I wanted to double check so I ran disk verify and permission verify on the disk utility. To my surprise it came back with a LONG error log as below. So long, I could not get it all into this post. But it seems like a recurrent message. Do I need to worry about any of this? What should I do next, if anything? Thanks in advance for your response.
Verifying volume “Macintosh HD”
Performing live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Checking multi-linked files.
Checking catalog hierarchy.
Checking extended attributes file.
Checking volume bitmap.
Checking volume information.
Invalid volume file count
(It should be 624512 instead of 624514)
Invalid volume directory count
(It should be 172781 instead of 172779)
The volume Macintosh HD was found corrupt and needs to be repaired.
Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.
Verify permissions for “Macintosh HD”
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUAdvanced.nib/keyedobjects.nib", should be 0, group is 80.
Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUAdvanced.nib/keyedobjects.nib", should be -rw-r--r-- , they are -rw-rw-r-- .
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUAssistant.nib/keyedobjects.nib", should be 0, group is 80.
Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUAssistant.nib/keyedobjects.nib", should be -rw-r--r-- , they are -rw-rw-r-- .
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUDocument.nib/keyedobjects.nib", should be 0, group is 80.
Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUDocument.nib/keyedobjects.nib", should be -rw-r--r-- , they are -rw-rw-r-- .
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Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUDrives.nib/keyedobjects.nib", should be -rw-r--r-- , they are -rw-rw-r-- .
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUStatisticsPanel.nib/keyedobjects.nib ", should be 0, group is 80.
Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUStatisticsPanel.nib/keyedobjects.nib ", should be -rw-r--r-- , they are -rw-rw-r-- .
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUTaskSheet.nib/keyedobjects.nib", should be 0, group is 80.
Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUTaskSheet.nib/keyedobjects.nib", should be -rw-r--r-- , they are -rw-rw-r-- .
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUTasks.strings", should be 0, group is 80.
Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUTasks.strings", should be -rw-r--r-- , they are -rw-rw-r-- .
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUWirelessPanel.nib/keyedobjects.nib", should be 0, group is 80.
Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUWirelessPanel.nib/keyedobjects.nib", should be -rw-r--r-- , they are -rw-rw-r-- .
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/APPanels.nib/keyedobjects.nib", should be 0, group is 80.
Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/APPanels.nib/keyedobjects.nib", should be -rw-r--r-- , they are -rw-rw-r-- .
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Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AirPortAssistant.strings", should be -rw-r--r-- , they are -rw-rw-r-- .
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AirPortErrors.strings", should be 0, group is 80.
Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AirPortErrors.strings", should be -rw-r--r-- , they are -rw-rw-r-- .
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AirPortSettings.strings", should be 0, group is 80.
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Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AirPortTimeZones.strings", should be 0, group is 80.
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Permissions differ on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AirPortUtilityHelp/AirPortUtilityHelp.h tml", should be -rw-r--r-- , they are -rw-rw-r-- .

Scott Adelman wrote:
The issue is that I wanted to double check so I ran disk verify and permission verify on the disk utility. To my surprise it came back with a LONG error log as below. So long, I could not get it all into this post. But it seems like a recurrent message. Do I need to worry about any of this? What should I do next, if anything?
Verifying volume “Macintosh HD”
Invalid volume file count
(It should be 624512 instead of 624514)
Invalid volume directory count
(It should be 172781 instead of 172779)
The volume Macintosh HD was found corrupt and needs to be repaired.
Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.
You definitely need to repair your disk. If you can, boot from something else, such an external disk or the system discs that came with your Mac. You can also cause the disk to be repaired by booting into "Safe Mode": http://support.apple.com/kb/ht1564 . If that process can't repair your disk, you may need one of the more-powerful disk utilities such as Disk Warrior.
Verify permissions for “Macintosh HD”
Group differs on "Applications/Utilities/AirPort Utility.app/Contents/Resources/pl.lproj/AAUAdvanced.nib/keyedobjects.nib", should be 0, group is 80.
You can ignore most permissions repair messages:
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Do I need to worry about these event handlers in a grid from a memory leak perspective?

I'm pretty new to Flex and coudn't figure out how to add event handlers to inline item renderer components from the containing file script so I attached the listnerers simply as part of the components themselves (eg <mx:Checkbox ... chnage="outerDocument.doSomething(event)"../>):
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This grid is part of a view that will get destroyed and recreated potentially many times during a user's session within the application (there's a large dynamic nature to the app and views are created at run-time.) By destroyed I mean that the view that holds the above datagrid will no longer be referenced under certain circumstances and an entire new view object is created (meaning the old datagrid is no longer refernced and a new one is created.)
I heard you should clean up event handlers when they are no longer used, and I know at what point the view is destroyed, but I don't know how to clean up the event handlers added to the item renderer components? Is it something that the Flex garbage collector will handle efficiently?
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What do I need to worry about when running a VI for an extended amount of time?

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