Why USB drive can't copy file size more than 4 Gb.

Because FAT32 cannot handle file more than 4 Gb
Use NTFS for can handle large files.

the given key was not present

In Visual Studio 10 I need to delete old Database connection but when do that it show
"the given key was not present" because i uninstall old oracle provider and add new one.
Now I can't connect to my Oracle DB

To fix this simply delete "DefaultView.SEView" in
c:\Users\[your username]\AppData\Roaming\Microsoft\VisualStudio\10.0\ServerExplorer

*Delete this file will delete all your connection so remember or backup your connection first.

Upgrade Mantis 1.2.11 from 1.2.10 Problem.

I have problem because I set up PHP with IIS 7 and SQL Server 2008 R2.
After follow instruction just found some error and not correct update table.

so i recognise I have problem about APPLICATION WARNING #user_get_field() for NO_USER: before

so i fix by edit library\adodb\adodb.inc.php before upgrade database
anything work fine now.

see more details here http://pakorosprogramming.blogspot.com/2012/06/mantisbt-1210-iis-mssql-first-install.html

PHP Loaded Configuration File not load from php folder

This happen to me when try to use PHP 5.2.16 with IIS 6 (Windows 2003)
To fix this add folder php path to System Environment Path and add PHPRC with value same folder

Restart and now it will load from php directory.