Okay so yesterday I installed the Pets expansion pack onto my computer, and after I started up the game and got to the loading screen the whole screen is black and the loading words are all jumbled at the bottom. After it finally makes it past that loading screen and I get to the main menu when I pick a game and the next loading screen pops up it gets about an inch down the loader and cancels and says "Sims 3 not responding!" I really just wanna play my game, and I don't wanna lose my families please help!

Btw, I previously had Late Night & Ambitions installed.
I don't know whats wrong and the game has NEVER given me problems before.


Thanks Ahead!

------------------
System Information
------------------
Time of this report: 4/4/2012, 14:47:53
Machine name: FLORENCE-PC
Operating System: Windows Vista™ Home Premium (6.0, Build 6002) Service Pack 2 (6002.vistasp2_gdr.111025-0338)
Language: English (Regional Setting: English)
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: BIOS Date: 12/04/07 17:40:55 Ver: 08.00.12
Processor: n/a
Memory: 1790MB RAM
Page File: 2225MB used, 1606MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
DxDiag Version: 7.00.6002.18107 32bit Unicode


---------------
Display Devices
---------------
Card name: NVIDIA GeForce 6150SE nForce 430
Manufacturer: NVIDIA
Chip type: GeForce 6150SE nForce 430
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_03D0&SUBSYS_82341043&REV_A2
Display Memory: 889 MB
Dedicated Memory: 249 MB
Shared Memory: 639 MB
Current Mode: 1440 x 900 (32 bit) (60Hz)
Monitor: HSD HF199H
Driver Name: nvd3dum.dll
Driver Version: 8.17.0012.7533 (English)
DDI Version: 9Ex
BGRA Supported: Yes
Driver Attributes: Final Retail
Driver Date/Size: 5/21/2011 06:01:00, 11992680 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Device Identifier: {D7B71E3E-4090-11CF-9E6E-38A21CC2C535}
Vendor ID: 0x10DE
Device ID: 0x03D0
SubSys ID: 0x82341043
Revision ID: 0x00A2
Revision ID: 0x00A2

-------------
Sound Devices
-------------
Description: Speakers (High Definition Audio Device)
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0662&SUBSYS_10438290&REV_1001
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: HdAudio.sys
Driver Version: 6.00.6002.18005 (English)
Driver Attributes: Final Retail
WHQL Logo'd: n/a
Date and Size: 4/10/2009 21:43:02, 236544 bytes
Other Files:
Driver Provider: Microsoft
HW Accel Level: Basic
Cap Flags: 0x0
Min/Max Sample Rate: 0, 0
Static/Strm HW Mix Bufs: 0, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No

Description: Digital Output Device (SPDIF) (High Definition Audio Device)
Default Sound Playback: No
Default Voice Playback: No
Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0662&SUBSYS_10438290&REV_1001
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: HdAudio.sys
Driver Version: 6.00.6002.18005 (English)
Driver Attributes: Final Retail
WHQL Logo'd: n/a
Date and Size: 4/10/2009 21:43:02, 236544 bytes
Other Files:
Driver Provider: Microsoft
HW Accel Level: Basic
Cap Flags: 0x0
Min/Max Sample Rate: 0, 0
Static/Strm HW Mix Bufs: 0, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No



------------------------
Disk & DVD/CD-ROM Drives
------------------------
Drive: C:
Free Space: 6.3 GB
Total Space: 152.6 GB
File System: NTFS
Model: ST316081 5AS SCSI Disk Device

Drive: E:
Free Space: 116.9 GB
Total Space: 131.1 GB
File System: NTFS
Model: WDC WD1600SB-01KBC0 ATA Device

Drive: J:
Free Space: 21.5 GB
Total Space: 21.6 GB
File System: NTFS
Model: WDC WD1600SB-01KBC0 ATA Device

• Sims 3 - Game Problems
  Please go through this FAQ and follow the instructions, doing each step in order and not skipping anything:
  • Game Help:Sims 3 Game Problem^wiki
  Most issues with the game can be resolved by following those steps.
  
  

Issues starting after the installation of a new patch are most likely CC-related. Do the above to rule out (or in) the common causes, then we'll have a better idea of what might be at fault. :)

That machine does not meet the requirements for the base game, let alone pets! You have less than 2 gb of ram. 2 gb is the minimum for the base game, 4 is the minimum with pets. You also have an integrated graphics card that doesn't support the sims 3. It's odd that there's no info about the processor, but considering your other specs, it doesn't really matter what processor you have.