Why does power director change my computers color display. Also after no problems in the first few months it keeps crashing even when i am working on the same videos as before and it freezes when i save. I have the latest version of 64 bit buil 2504

Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7600) (7600.win7_gdr.100618-1621)
Language: English (Regional Setting: English)
System Manufacturer: Dell Inc.
System Model: Studio XPS 8100
BIOS: Default System BIOS
Processor: Intel(R) Core(TM) i5 CPU 650 @ 3.20GHz (4 CPUs), ~3.2GHz
Memory: 6144MB RAM
Available OS Memory: 6072MB RAM
Page File: 1920MB used, 10219MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7600.16385 32bit Unicode

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DxDiag Notes
------------
Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Input Tab: No problems found.

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DirectX Debug Levels
--------------------
Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

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Display Devices
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Card name: NVIDIA GeForce 310
Manufacturer: NVIDIA
Chip type: GeForce 310
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_0A66&SUBSYS_90601B0A&REV_A2
Display Memory: 3254 MB
Dedicated Memory: 474 MB
Shared Memory: 2779 MB
Current Mode: 1600 x 900 (32 bit) (60Hz)
Monitor Name: HP 2010 Series Wide LCD Monitor
Monitor Model: HP 2010
Monitor Id: HWP2888
Native Mode: 1600 x 900(p) (60.000Hz)
Output Type: DVI
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 8.17.0012.6099 (English)
Driver Version: 8.17.12.6099
DDI Version: 10.1
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 10/16/2010 13:55:00, 12788840 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Device Identifier: {D7B71E3E-4926-11CF-696F-6CB01CC2C535}
Vendor ID: 0x10DE
Device ID: 0x0A66
SubSys ID: 0x90601B0A
Revision ID: 0x00A2
Driver Strong Name: oem91.inf:NVIDIA_SetA_Devices.NTamd64.6.1:Section004:8.17.12.6099:pci\ven_10de&dev_0a66
Rank Of Driver: 00E62001
Video Accel: ModeMPEG2_A ModeMPEG2_C ModeVC1_C ModeWMV9_C