Please help, cant get HD working correctly

Hello, yesterday i installed a brand new XFX radeon HD5450 card, the main purpose of this is so i could have a nice sharp HD display on my pc, I recently got myself a 32 inch toshiba HDTV and needed a graphics card to get the most from my new display, after installing all the latest drivers and the catalyst control centre from the XFX website i swapped over to the HDMI connection and the picture was just not nice at all,no matter what i changed the resolution to i could not get a sharp display, i was up til 4 am going through all the settings in the catalyst control centre and i could not get it sorted, text and pictures where fuzzy and hard to read, I am now reverted back to VGA with a nice resolution and a sharp display but i want my HD to work, i thought it would have been as simple as installing the card and switching it on, i am running windows 7 64 bit with 8gb of ram and a phenom 9950 quad core cpu, i dont know what to do now other than re-install the card but im not sure that would solve it, anyone else that i know with a similar set up said it worked fine with them through a HDMI connection...any help is appreciated a lot....

I have just spent hours trying same thing. What I did was uninstall all software, plug in HDMI and reload software and driver.

this sounds worth a try, thanks for your help...i am at my wits end with this issue....i have done everything i can do to get this card working correctly....i will try this and report back

I thought further about what I did and the first thing I did was plug in DVI to HDMI adator and hhok up cable and restart. I then went to CCC and swithed to my HDTV which then showed up. I then uninstalled all ATI, went to AMD and downloaded latest driver. Good luck