johnny22r2d2

I have an older motherboard i am upgrading the video card on for the time being until i buy a new motherboard and i am running a 128mb video card in a PCI slot and am trying to put a Radeon 9550 256mb AGP slot into the motherboards AGP slot. I pull the old PCI slot one and install the new one into the AGP slot on the motherboard and i get the boot up screen then the blinking cursor and everything but as soon as it would normally got to the XP screen the screen goes black. The monitor is getting an input cause when it doesn't it goes into hibernate but all i see is the black screen. I went back to the PCI slot board to get the PC working again for the time being. Do i need to uninstall the drivers for the PCI slot video card 1st then install the AGP slot board and hope it recognizes it?

ProcessorSupport for an Intel Pentium 4 processor 1.5ghz
400 MHz system data bus

MemoryThree DIMM slots
Support for up to 1.5-GB memory using PC133 DIMMs

ChipsetIntel 82845 Chipset consisting of:
Intel 82845 MCH
Intel 82801BA ICH2
Intel 82802AB 4-megabit FWH

Integrated EthernetIntel Kinnereth 10/100 LAN with standard RJ-45
connector
Audio ChipsetADI 1886 integrated digital audio codec (analog output
only)
I/O ControlSMSC LPC47M142 LPC bus I/O controller
VideoAGP connector supporting 1.5 V 4X AGP cards
Peripheral interfacesSix USB 1.1 ports
One serial port
One parallel port
Two IDE interfaces with Ultra DMA, ATA-33/66/100 support
One disk drive interface
PS/2 keyboard and mouse ports

Expansion capabilitiesThree PCI bus add-in card connectors (SMBus
routed to PCI bus connector 2)
BIOSIntel/AMI BIOS (resident in the Intel 82802AB 4-megabit FWH)
Support for APM, ACPI, Plug and Play, and SMBIOS

Instantly Available PCSupport for PCI Local Bus Specification
Revision 2.2
Suspend to RAM support
Wake on PCI, CNR, RS-232, front panel, PS/2 keyboard, and USB ports

Thank you for any help