Monitor will not recieve input

[illuminite]

Ok so here's the basics of my computer.

First off, I have an asus vh236h monitor(23 in hdmi lcd monitor)
My peripheals are a 20 year old keyboard(<3 old keyboards) and a stock mouse I found somewhere(which I need to upgrade, my gaming mouse died, but I bought it for 20 bucks so it is expected)

So the main parts. I have a seagate 160gig hdd(my 500gig died half a year back and haven't really had the time or money to upgrade)
ASUS M4A785-M AMD 785G Socket AM3 Motherboard
AMD Athlon II X4 635 2.9Ghz AM3 OEM CPU

Power supply is a xion 450 watt. It a pos which I need to upgrade.

I also got a VGA SAPPHIRE|100284L HD5750 1G ATI video card.

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This has happened before, and let me explain how this happened. I decided to try my luck with what I thought was a bad stick of ram and when I inserted it, ta-da, black screen. Took it back out and still black screen.

I'm about to try and reseat my graphics card and see what that does.

I plan on upgrading the ram soon anyway, so I was just trying to make sure that its the ram sticks that are bad, not the motherboard.

Thanks in advance.

[patio]

DLoad and run MemTest...run it for at least an hour...
Any Errors at all and it's the RAM...

[illuminite]

Ok, so I reseated the graphics card and its all dandy.

Now I've uninstalled CCC and now its telling me theres no hardware to install CCC.
Despite the fact I'm using the graphics card hdmi input to look at this screen.

BTW: I've purchased a new power supply, 4 gigs of ram, and a new cpu fan to get rid of all my troubles once and for all.

I am currently trying to uninstall any and all ATI drivers and reinstall in hopes of ridding this problem.