Installed Logic Express 8, now my Mac Pro won't start

I got a brand new Mac Pro about a week ago. It appeared to work fine until last night. I powered it on, installed a brand new copy of Logic Express 8 on it, shut it down, and now the Mac Pro can't finish starting up (stays forever on the gray screen with the apple and the progress indicator).
Has anyone experienced a similar problem caused by Logic, or is it just a coincidence?
(The complicating factor is that the very first thing I did when I got the Mac Pro was to install M-Audio's driver for the ProjectMix I/O. This is the only driver I've added. It's not officially supported on Leopard. But it didn't affect the Mac's ability to boot for the first week, so that would seem to put it in the clear.)

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PLEASE HELP ME!

If you can't start up and log in in the usual way, try in safe mode.
During startup, you’ll see a progress bar, and then the login screen, which appears even if you normally log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Log in as an administrator to carry out these instructions. If you have only one account, you are the administrator.
☞ If you don't see any reports listed, but you know there was a panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
Safe mode is slower than normal, and some things won’t work at all.
Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t start in safe mode.
If you're able to log in, launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
In the Console window, select
DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports
(not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar.
There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A panic report has a name that begins with "Kernel" and ends in ".panic". Select the most recent one. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot.
I know the report is long, maybe several hundred lines. Please post all of it anyway.
In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)
Please don’t post other kinds of diagnostic report.

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Says OS X could not be installed on your computer.
File system verify or repair failed.
Quit the installer to restart your computer and try again.
I did all that a couple of times and still won't work.

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Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
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Never mind my dad just found the original install DVD and that worked. Before I was using an install disc that Apple sent me for another issue I was having, but thanks for replying so quickly and trying to help on this Thanksgiving day!!!

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Install or Reinstall Yosemite, Mavericks, Mountain Lion, or Lion from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
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OS X Mavericks- Erase and reinstall OS X
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My Mac Pro won't start. It turns on and then a blank, white screen appears. What do I do?, My Mac Book Pro won't start. It turns on and then a blank, white screen appears. What do I do?

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My Mac Pro won't start

My mac pro won't start have a light on and sometimes have a green light on caps key.

Hello there hoc5050,
It sounds like your computer is not turning on consistently. I would recommend the troubleshooting in this article to help you determine what might be causing the issue, named:
Troubleshooting: My computer won't turn on
Thank you for using Apple Support Communities.
Cheers,
Sterling

I installed logic express 9 on my mac but it says it cant be used on my mac OS X 10.9.1 anyone know why this is?

Is there anyone knowing why this is?

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I just installed the latest security update for Lion on my Mac Pro via software update. The update seemed to install fine. I was about to start work when all of a sudden the system rebooted on its own. Now it just continues to reboot because it can't complete the boot up.
I tried resetting PRAM and SMC, but this didn't help.
I tried booting up from CD using an old SNL disk. I was able to get to disk tools once. I checked my startup volume and disk tools said the volumes is fine. I was checking permissions when once again the system rebooted on its own.
I tried starting up in safe mode, but it only gets so far into the boot process before it reboots.
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If I leave the system sit a few minutes, it gets further into the boot process, but still won't boot completely.
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Mac Pro tower or MacBook Pro notebook? Which model?
If you are encountering kernel panics, check in the logs as suggested here and post a recent kernel panic log:
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pull the drives you have. ]
F'ind a way to do a clean system install on another drive.
Clone your user data to another drive also.
ie, create a new solid foundation.
but until your repair your drives, by booting off another device, don't use them. Pull them for now.

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Hi can anyone please help me??? Our power went out while my husband was out of town and HIS Mac Pro is just sitting there with the grey screen with the apple on it and the progress wheel spinning, it has been this way for over 2 days now and I am scared to death to shut it off or try to restart it!
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1. Buy him an APC UPS 1500VA so power outage, brown outs etc are a thing of the past.
2. Kill it for now.
3. Make sure there are bootable backup clones - SuperDuper or Carbon Copy or another clone program.
4. Install OS X to a small 20GB partition to repair the main system.
5. Invest in 3rd party disk repair maintenance if you haven't already.
Micromat TechTool Pro 5.x
Alsoft Disk Warrior (#1 choice)
Prosoft Drive Genius 3
http://www.macintouch.com/readerreports/harddrives/topic4557.html#d10aug2010
You/he are facing a corrupt disk directory that can't be fixed automatically and don't use the drive as is, work from another hard drive, which is why you want to install and have bootable backups, and maybe a drive volume to recover and/or backup to.
This Cyberpower is what I use, replaced the APC units.
http://www.amazon.com/Cyberpower-CP1500AVRLCD-UPS-Display-8-Outlet/dp/B000FBK3QK /
APC 1500VA
http://www.amazon.com/APC-BACK-UPS-BR1500LCD-1500VA-System/dp/B000NDA5E0/

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Also: No the computer is not under any warranty. If at all possible, I would like to fix this myself. Thanks for any help you can give.

Well, I may have found the answer to my question as to why replacing the fuse dows not seem to be encouraged. I cut out the failed fuse (fast fuse, ceramic, 16 Amp 250V), and replaced it with another that was as close to it in spec as I could find (15 A instead of 16). Then I put the supply back in the case.
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Hello,
My Friend spilt a drink on their laptop and the device started to smoke.
My suggestion is to get a hair tight container fill it with rice and put your computer in it, and leave it for 1-2 days.
The rice should absorb most of the water, and hopefully it should work again.
If it does turn on make sure you check the lights under the keys!
If they still don't work my suggestions are to take it in to an Apple store.
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I wish the best for your fellow Mac!

Installed Logic Express 8, now my Mac Pro won't start

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