Here is what I feel is the problem and is whats considered a TEXTBOOK error.
1.) Use the Onboard chipsets VGA interface to connect your monitor.
2.) During the boot process go into the CMOS setup or "BIOS" and manually disable the onboard video chipset (this is causing hardware conflict).
3.) If there is a setting within the BIOS to choose the default display card choose AGP/PCI.
4.) Simply connect the CRT or "monitor" to the new Video cards output interface and connect.
5.) Enjoy and have fun!
NOTE: If this does not solve it then I would suggest upgrading them motherboards BIOS firmware.
\"No matter how deeply troubled you are, you can always change if you\'re willing.\"