my sims 2 crashes

[felizita]

i have had my laptop since january and sims has been playing fine up until about a month ago or less.....it started crashing or freezing in the middle of game play.

it varies- sometimes its right when i start to play a lot, and other times it takes a few mins then it freezesand sometimes it takes along time to freeze, i have a HP DV6780SE (got it on ebay for $500!)

Processor and Memory
Processor Brand Intel
Processor Class Core 2 Duo
Processor Speed 1.67 GHz
Mobile Technology Intel Centrino
Installed Memory 3 GB
Maximum Memory 4 GB
Memory Technology DDR2 SDRAM
System Memory Configuration 1 x 1 GB + 1 x 2 GB
Cache Size 2 MB
Processor Core 2 Duo
Processor Technology Intel Centrino
Processor Number T5450

Storage
Hard Drive Capacity 250 GB
Included Drives DVD±RW (+R DL) / DVD-RAM
Hard Drive Type Portable
Card Reader Type 5 in 1 card reader
Supported Flash Memory Cards SD Memory Card, Memory Stick, Memory Stick PRO, MultiMediaCard, xD-Picture Card
Display and Graphics Display Size 15.4 in.
Display Type TFT active matrix
Graphics Processor NVIDIA GeForce 8400M GS
Resolution 1280 x 800 pixels
Display Resolution Standard WXGA
Modem Speed 56 Kbps
Software Operating System Microsoft Windows Vista Home Premium
Connectors Interface Provided Infrared, S-Video, VGA, Phone line, Ethernet
Warranty Warranty Information 1 year warranty
Base Warranty 1 year warranty
General Product Info Input Devices Keyboard, Touchpad
Included Sound Card Sound card
Weight 6.8 lbs.
EPEAT Compliant Yes
Also known as HP Pavilion dv6780SE, HP Pavilion KC413UA#ABA, Hewlett-Packard KC413UA#ABA, Hewlett-Packard dv6780SE, HP Pavilion

Hi there, contact EA Games for this support inquery