Ironically the GUI of guiminer.exe (2011-07-01) disappeared from my Windows 7 x64 machine.
After investigating, I found out that poclbm.ini's settings for "window_position" were changed to -32000 for both horizontal and vertical positions. I reset them to 0 and I could see the GUI again when launching guiminer.exe. Hope this helps other people. You may want to check why it resets to -32000 instead of 0. It happened a second time to me just now, while I was opening and closing guiminer.exe to test it. Here's the ini content:

    "window_position": [
         -32000,
        -32000,
        160,
        27
    ]

Also, I noticed that the poclbm.exe process is now taking up 50% of the CPU usage, with the first of the 2 dual core CPUs at 100%, when it used to be 0% with the 2011-06-09 version of guiminer.exe. I saw that "CPU Affinity" had the #0 CPU checked, so I unchecked it, but all it did was switch the 100% usage from CPU #0 to #1 in Windows Task Manager.
There is just one miner in guiminer.exe, the default one using the NVidia card. Both CPU Affinity checkboxes are unselected, there is nothing in the Extra flags box. So it looks like mining happens both on the GPU and the CPU, with a slightly lower MH/s rate compared to when it mined on the GPU only.

Strangely, both bugs appeared at the time BitDefender reported a Trojan in guiminer\miners\ufasoft\bitcoin-miner.exe and deleted the file. I also inadvertently launched a second guiminer.exe process at about the same time (because the first one was not visible in the Notification area by default) which apparently resulted in 2 guiminer processes running each half the MH/s rate than the previous unique process used to run, and I haven't been able to run guiminer normally every since, even after reinstalling with BitDefender disabled.

There is no trace of guiminer or poclbm in my Registry, I cleaned up the Notification Area Icons, deleted and redownloaded guiminer, so I don't know what's happening and how to get back to 0% CPU usage.

Exception!
In order to trade on the exchange you must add either US Dollars (USD) or Bitcoins (BTC). You can redeem your funds at anytime.


I wanted to add some coins

其实ATI5850不错性价比合适。现在不是在清58XX系列的库存，有款5850的才1100多。不要想产出比，现在国内才开始。也就当玩玩游戏。我还是ATI4860，没事挂起哇速度也就50Mhash/S。

Final price will include the 0.65% fee collected by MtGox.

This will be more obvious in the new version we are working on.

I don't think the price is tied to the difficulty.

I think x reason cause y change in MtGox's price.

Hi,

Just for info the transfer was indeed located and processed, everything shoud be fine.


Mark

The return on mining is going down 40% in a few days, and will continue to go down.  If you are buying that card solely for mining it will take longer to pay off.  It will still probably pay off but it could take a while. 

The XFX 5870 doesnt have voltage control due to XFX being cheap and removing components form the VRM.

EDIT: If you are planning to buy hardware now for mining you most likely didnt understand how bitcoins work.

http://www.mtgox.com/trade/history

i typed & it let me in.
Gave forbidden error for http://mtgox.com/trade/history

just chuck some www's on the front of that puppy and you wont have to bother with flushing.

Did your IP address changed in those mins ? Are cookies keeped in your browser ?