AIR 1.5 Installer File Damaged(file size issue?)

I am trying to publish a large air destop app. I have been trouble shooting the error and this is what I have found:

1. When I publish it and i have less than 27mb of inculded files, it publishes and can be installed.

2. When I add another 1.5mb of included files, and publish it, flash starts to not respond then kicks back in and creates the air file.

2.1 When I try to install this file it says installer file damaged.

This is the log file:

[2011-03-11:06:56:52] Application Installer begin with version 2.5.1.17730 on Windows 7 x86

[2011-03-11:06:56:52] Commandline is: "C:\Users\Smuga\Business\HDD\Business\AFiA Design\Language Brain Train\Language ENG\BrainTraining.air"

[2011-03-11:06:56:52] Installed runtime (2.5.1.17730) located at c:\Program Files\Common Files\Adobe AIR

[2011-03-11:06:56:52] Unpackaging file:///C:/Users/Smuga/Business/HDD/Business/AFiA%20Design/Language%20Brain%20Train/Language%20ENG/BrainTraining.air to C:\Users\Smuga\AppData\Local\Temp\flaCE6E.tmp

[2011-03-11:06:56:55] Package signature validation failed

[2011-03-11:06:56:55] Got an unexpected fatal error while unpackaging: [ErrorEvent type="error" bubbles=false cancelable=false eventPhase=2 text="invalid package signature" errorID=5022]

[2011-03-11:06:57:03] Application Installer end with exit code 7

3. Thought it was the certificate so I created a new one and nothing.

3.1  I removed the time stamp and nothing.

3.2 I did an air intermediate file to be signed later and nothing.

My last thought is that my computer hardware is to slow and while it freezes during publishing, the  air file gets messed up.

Anyone have any issues like this. Not sure what to make of it but I don't want to by a new computer if its not the above problem.