Its a common issue with HD 5000 series,download the latest driver from AMD.
I had this problem and changing the card's 2D speeds helps you.
Set your 2D clocks to 400/900,here is how:
1_Open CCC and choose Overdrive tab,unlock the settings(by clicking on the " Gold Key" icon)
2_Go top options,profile and choose profile manager.
3_In the composition tab,choose "The following settings" and in the "ATI Radeon HD 5900 series"make sure only ATI overdrive is checked.
Then enter a profile name,then save and close it(Do not activate).
4_Go to C:\Users\Your UserName\AppData\Local\ATI\ACE\Profiles (Its hidden so make sure you unlock hidden files and folders)
5_Open the profile with wordpad and do this edits:
<Property name="Want_0" value="40000" /> (default is 15700)
<Property name="Want_0" value="90000" /> (default is 30000)
I hope those drivers help Dave but if they didn't that guide should help.
About Cat 10.4,well even 10.3 isn't fully released yet (its currently 10.3a) so maybe next month 10.4 will come out
I ended up implementing your solution as the original drivers that came with the card were doing strange things when I needed to view UV map. I understand that ATI wants to keep the card running with a minimal power comsuption at idle but at the expense of 2d performance?
Well as i said this problems only happens in 2D mode,in 3D mode its OK and works fine.
It seems when the card wants to go from 2D clocks (157/300) too 3D clocks (725/1000) this happens or vice-versa (going from 3D clocks to 2D) and it will be fixed with 10.4 drivers(as reported)
Also a quick note to others who want to try to raise their 2-D clocks, I found that OCing my card (even just a MHz or two) would raise my 2-D clocks to 500/750. Don't know if this works for all cards, but worth a try.
To OP, if you keep getting really weird issues, you may just want to try RMAing the card.
10.3a (preview) I think was mainly to get the new drivers (which add tons of 3-D performance increases) in the hands of reviewers who are testing the GTX480 this week (or at least in the news). The official 10.3 drivers should be out around Wednesday of this week.
Yeah I did try 400/900 and the driver did crash last night.
At the minute I have it set to 550/900. I'm on the verge on sending this card back to the place i got it from.
Not sure if this is related but I get booted from Battfield 2 everytime i play and I can no longer return to the same server. Just noticed now that I get the occassion flicker/tearing in windows now well adjusting ati overdrive.
I'm in misery land - never had a single issue with my 8800gt card and it was less powerful!!!
Well, there are bad cards now and then. I got a 4850 with a short in it, but at least that one was clearly dead. For this 5800 release, I have never seen so many "mostly" working cards. It is very strange to me.
One question before my suggestion. What are your PSU and motherboard?
If those seem to check out, I'd say return to the retailer while you still can. You have put forth a more than reasonable effort in trying to get the card working, now it is time to try a new 5850. If still issues, then we know something else is likely the culprit and try some other things.
I have the same problem. I assembled two computers, both with HD5670 cards and get the lines and green dots on only one computer. I swapped cables and monitors but problem was still with the one machine BUT when I swapped the cards round the problem moved along with the card to the next computer. I have a 400watt PSU on both machines and one of the HD5670 works fine whilst the other is having the dot issue. I do not think its the PSU, think its a bad card as Im trying to get mine replaced.
did you change the clocks and purchase a new PSU to solve your problem?