I just bought the unreal gamebundle, and installed Unreal. Unreal runs just fine. Then I decided to install Unreal 2, doenloaded and installed but game cant even start. Here's the error I get when I try to start the game:

LockRect failed: D3DERR_DEVICELOST

History: UD3DRenderDevice::ReadPixels <- UD3DRenderDevice::Present <- UGameEngine::UpdateProgress <- UGameEngine::Draw <- UWindowsViewport::Repaint <- UWindowsClient::Tick <- ClientTick <- UGameEngine::Tick <- UpdateWorld <- MainLoop

Build: Mar 14 2003 13:26:15

I have no idea what that means, but Im guessing its something with GFX...?????

System Information:

Operating System: Windows 10 Pro 64-bit (10.0, Build 10586) (10586.th2_release_sec.160422-1850)
Processor: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz (8 CPUs), ~4.0GHz
Memory: 16384MB RAM
DirectX Version: 12
GFX: AMD Radeon R9 280X OC

EDIT: finally foun the sollution:

Edit Unreal2.ini

Go to <path-to-game>\system
Open Unreal2.ini
Find the line ReduceMouseLag=True
Change the line to ReduceMouseLag=False

Thank you so much. It works!

I tried that and still nothing.