ok so I got my internet working. but can you guys help me get my sound working too? also my display isn't very nice its kind of slow when scrolling through things on the internet and moving windows around. Is there any way to fix this??

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AMD Athlon(tm) 64 X2 Dual Core Processor 6000+ Socket AM2
ECS Nettle 2 Motherboard
NVIDIA nForce 430 chipset
North Bridge NVIDIA MCP61 Revision A3
South Bridge NVIDIA MCP61 Revision A3
NVIDIA GeForce 6150SE nForce 430
NVIDIA nForce Networking Controller
TSSTcorp CDDVDW TS-H653N SATA CdRom Device
1- 320 gb SATA HD (running vista)
2- 320 gb SATA HD (running OS X 10.5.6 using iPC)
3- 320 gb external HD (used for media)