I am Counter-Strike: Source online gamer, and recently i received a new wide screen Compaq monitor for Christmas.=]
I connected it to my HP System Unit, then adjusted the video settings for the desktop, and for CS:S.
Then when i launched the game, everything was fine, the FPS, the colour, but the only problem was, whenever i moved my mouse in any direction during gameplay, the game would react only roughly about a quarter of a second late. I'm not exactly sure what the problem is, as with my old monitor, everything reacted as soon as i moved my mouse in any direction during gameplay. I think it may be the monitor refresh rate, because with my old HP Monitor, it used to b 75 Hz, but with this one it is 60 Hz.

If you want me to provide any further information on my problem, just leave a comment below.

Processor Information:
Vendor: GenuineIntel
Speed: 2800 Mhz
1 logical processor
1 physical processor
HyperThreading: Unsupported
FCMOV: Supported
SSE2: Supported

Network Information:
Network Speed:

Windows Version:
Windows XP (32 bit)
NTFS: Supported

Video Card:
Driver: NVIDIA GeForce FX 5200
DirectX Driver Name: nv4_disp.dll
Driver Version: 6.14.11.7519
DirectX Driver Version: 6.14.11.7519
Driver Date: 16 May 2008
Desktop Color Depth: 32 bits per pixel
Monitor Refresh Rate: 60 Hz
DirectX Card: NVIDIA GeForce FX 5200
VendorID: 0x10de
DeviceID: 0x322
Number of Monitors: 1
Number of Logical Video Cards: 1
No SLI or Crossfire Detected
Primary Display Resolution: 1680 x 1050
Desktop Resolution: 1680 x 1050
Primary Display Size: 18.50" x 11.54" (21.77" diag)
47.0cm x 29.3cm (55.3cm diag)
Primary Bus: AGP 8x
Primary VRAM: 128 MB
Supported MSAA Modes: 2x 4x


Sound card:
Audio device: Realtek AC97 Audio

Memory:
RAM: 1535 Mb

Miscellaneous:
UI Language: English
Microphone: Not set
Media Type: DVD
Total Hard Disk Space Available: 267101 Mb
Largest Free Hard Disk Block: 51712 Mb
OS Install Date: Mar 19 2008
Installed Packages: Firefox,Windows Firewall