Nvidia FX5200 problem

I formatted my pc and wanted to reinstall my nvidia geforce fx5200 graphics card, but when i install the card an turn on the pc nothing appears on the monitor. Then when i take it out again it works perfectly. How do I solve this? I tried to install the driver without the graphics card in the pc, but obviously that didn't work.
Here are my specs:

Computer:
Computer Type ACPI Multiprocessor PC
Operating System Microsoft Windows XP Professional
OS Service Pack [ TRIAL VERSION ]
Internet Explorer 8.0.6001.18702 (IE 8.0)
DirectX 4.09.00.0904 (DirectX 9.0c)
Computer Name IANPC
User Name Ian
Logon Domain [ TRIAL VERSION ]
Date / Time 2011-11-29 / 09:47

Motherboard:
CPU Type Intel Pentium 4 630, 3000 MHz (15 x 200)
Motherboard Name Asus P5PE-VM (3 PCI, 1 AGP, 2 DDR DIMM, Audio, Video, Gigabit LAN)
Motherboard Chipset Intel Springdale-G i865G
System Memory [ TRIAL VERSION ]
DIMM1: 1 GB PC3200 DDR SDRAM (3.0-3-3-8 @ 200 MHz) (2.5-3-3-8 @ 200 MHz)
BIOS Type AMI (03/03/07)
Communication Port Communications Port (COM1)
Communication Port ECP Printer Port (LPT1)

Display:
Video Adapter Intel Extreme Graphics 2
3D Accelerator Intel Extreme Graphics 2

Multimedia:
Audio Adapter Analog Devices 1888 @ Intel 82801EB ICH5 - AC'97 Audio Controller [A-2/A-3]

Storage:
IDE Controller Intel(R) 82801EB Ultra ATA Storage Controllers
Floppy Drive Floppy disk drive
Disk Drive SanDisk Cruzer Edge USB Device (7 GB, USB)
Disk Drive ST3160212A (160 GB, 7200 RPM, Ultra-ATA/100)
Optical Drive HL-DT-ST DVD-RAM GSA-H20L (DVD+R9:8x, DVD-R9:4x, DVD+RW:16x/8x, DVD-RW:16x/6x, DVD-RAM:5x, DVD-ROM:16x, CD:48x/32x/48x DVD+RW/DVD-RW/DVD-RAM)
SMART Hard Disks Status OK

Please Help!
 
This may seem too basic so don't take this the wrong way but when you installed the graphics card did you switch the monitor cable from the onboard graphics connector to the graphics card connector?
 
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