Hi and hello to everyone im new here and am quite a novice looking for help!!!!

I recently installed Vista Ultimate over my old xp as i liked the look of vista, all is good apart from i have no sound at all.
I have ttried installing drivers again updates and eveything, i've tried removing the hardware in device manager but to no avail.
Please help me!!!

My system spec is below:-

CPU Intel® Pentium® 4 550J (3.4 GHz)
Memory 1500 MB DDR RAM (PC3200)
Motherboard MS 7046
Hard Drive 250GB WD2500JD Western Digital 7200RPM SATA
CD / DVD Drive Artec DHM-G48 16X DVD-ROM
CD / DVD Drive Pioneer DVR-108DB DVDRW
Floppy Drive Floppy disk drive
Modem Modem/Analogue TV tuner CTX918
Video / Graphics Card ATI Radeon x600 Pro PCI Express
Network Card Creatix 405 PCI 802.11g wireless
Network Card VIA Rhine III VT6105
Remote PowerCinema remote control
Ports Advent T9X0X series connector guide
Disassembly Advent AIRXL case information
Keyboard Advent wireless keyboard
Mouse Advent wireless mouse
Sound Card Realtek High Definition Audio (Azalia)

ok after uninstalling the driver from the device manager did you try to install the sound card again?

yes tried everything and its starting to thrash my head

ok try to go to safe mode and check whether you are able to get same problem?

1. how do i boot in safe mode

2. how do i boot to the bios menu

TO get into Safe Mode start pushing your F8 key when the system comes up. Your BIOS is probably the Del key, but could be F2 or F10. You'll have to watch for it when the system boots up.