Black screen after booting system (driver installation)

[Decado1]

Hi

I bought and installed some new RAM, a video card and Windows 7 Home 64bit oem.

All the hardware and software installations seemed to have gone fine until I restarted my computer after installing the drivers for my Sapphire 5770 card. After the reboot I got to the "loading Windows" bit and the screen goes black and never changes. I've tried using a Driver Cleaning program to get rid of as much stuff as possible, but I still can't progress past that point.

I'm not really sure if the problem is hardware, software, incompatibility etc. Help would be appreciated.

Here is the rest of my config:

Core2 Duo E6300 Dual Core Processor LGA775 Conroe 1.86GHZ 1066FSB 2MB Retail
Gigabyte GA-965P-S3 ATX LGA775 Conroe P965 DDR2 PCI-E16 3PCI-E1 3PCI SATA2 GBLAN Audio Motherboard
OCZ Gold XTC PC2-6400 2GB 2X1GB DDR2-800 CL5-5-5-12 240PIN DIMM Dual Channel Memory Kit
Coolermaster CAC-T05 Centurion 5 Aluminum ATX Tower Case 5X5.25 1X3.5 4X3.5INT SILVER-BLACK No PS
OCZ GameXStream 700W ATX12V 24PIN SLI Ready Active PFC ATX Power Supply 120MM Fan Black
Arctic Cooling Freezer 7 Pro
Seagate Barracuda 7200 320GB SATA2 3GB/S 7200RPM 16MB Cache NCQ Hard Drive
1TB 7200 hard drive
Pioneer DVR-111D Black DVD-RW 16X6X16 DVD+RW 16X8X16 DL 8X IDE OEM DVD Burner
Sony Black 1.44MB 3.5IN Floppy Drive
Logitec X-530 speakers

I've put this in the Graphics Cards section because I'm pretty sure the problem revolves around it. thanks

 

[Decado1]

Bit of an update. After doing some searching it appears that there may be issues with this care and PCI-e 1.0 mobos. Funny thing, though, is if I disable/remove the Catalyst driver and restart my PC works OK (for basic stuff, anyway). Even the hdi-out to my TV works fine. The reason this is odd is because I heard that my mobo doesn't have an onboard video card.

So...my video card works but the drivers screw it up? More confused than ever

 

[Decado1]

Alright then. Since no fix appears to be forthcoming, what is my best option? Can I return the video card and get another one? Replace my motherboard? What's the cheapest/easiest solution?