thanks a lot! everything's fine now, i used double monitors and as i connected the 2nd i got no problems. the program was DriverPack Solution 14.8,
driver provider: NVIDIA
driver date: 2/7/2014
driver version: 9.18.13.4052
Interesting, that it grabbed this driver 340.52, which I believe is not the absolute most current for your card.
The link I provided earlier is to the nVidia retail driver download site itself, showing latest driver being 347.52 for your card dated 2/10/2014. I doubt that there's really any difference at all, but it's just curious. Might be just a small lag in the driver database which DriverPack Solution uses, since both of these driver versions are within the past week, although there is a surprisingly large driver version difference.
But as long as you're running fine with what appears to be a very recent driver version, that's probably all that really matters.
the monitor is AOC 2350 from what i see in device manager, i don't remember exactly the model
Up at the top, you now say you use TWO MONITORS. So this AOC 2350 is just one of these two??
I asked what "screen resolution" showed, because it would show TWO monitors or just ONE. Which was it, and now which is it? Were you trying to run what was your two-monitor setup before swapping graphics cards, but with only one monitor now? Why didn't you connect both monitors as you had originally connected?
Anyway, if you're running with two monitors in an "extended desktop" setup (which would be shown in the "screen resolution" output I asked about), then one of them is #1 and the other is #2. You can arrange them any way you want by dragging the monitor images around, i.e. either one can be on the left or right. Also, one of them is designated by you as "primary" which is where programs open their windows by default and where the taskbar is normally placed (unless you drag the taskbar to the other monitor, or drag program windows to the other monitor).
Once you move these fundamental things around (i.e. move the taskbar to the non-primary monitor, or move open program windows to the non-primary monitor), Windows remembers their location so that they're still there where you last placed them the next time you open those programs or re-boot Windows.
So if you now remove a monitor that was previously where you had something placed, well it's kind of ambiguous whether Windows will automatically move it over to the one remaining monitor or not. Often it remains "off-desktop" on the "phantom monitor" which originally existed but which no longer exists, and you need to use a certain technique to "move it back" to the remaining visible monitor in what now is a one-monitor setup that previously used to be a two-monitor setup.
In other words, I'm not surprised you had anomalies when you swapped graphics cards if you originally had a two-monitor setup with your old graphics card and only connected one monitor with your new graphics card... until you finally re-connected the second monitor again, so that you were back to a two-monitor setup again.
Note that the particular setup for monitor #1 and #2 with your old graphics card (and its two connectors) might have been reversed with your new graphics card and its two connectors, just because of the hardware itself. So what might have been primary #1 with the old card was actually secondary #2 with the new card, and that's why some things might not have been visible until you re-connected that second monitor. Even then, you may have had to "reverse" the locations of #1 and #2 by dragging the monitor images around in "screen resolution" or using nVidia Control Panel.
Ok... enough said. You're back in business with a proper driver for your card, and you have your two monitors working properly again and arranged in Windows "extended desktop" configuration just as you want.
Mission accomplished.
