I am asking this again here because I feel that this is a software (driver) problem and not a hardware one.
I recently took my HDD from an XP box and installed it into a Vista box to copy some large files to the new machine. I have returned the drive to the XP box and it boots fine but at the login screen the keyboard and mouse both die. Safe mode is no different either. I know they do work in BIOS cause I have to log in there too before the machine will boot plus I am able to select boot options. I believe that Vista has somehow damaged the drivers by being in that box. I can tell you that Vista did something to circumvent XP security protocols on the drive in order to access it.
(maybe it's actually locking up due to something with account security settings being damaged?)
The keyboard and mouse are both PS2 and not USB
Both are very clean and well maintained
A mouse does not work in BIOS mode.
And if the PS/2 ports became disconnected while powered up. you will need to reboot. PS/2 is not hot swappable,
Try going into the bio's at start up and see if it is set for ps/2 settings to detect when you start up. If not then you will need the drivers disk that came with the keyboard and mouse, and reinstall them.
Ok, so i was looking at some PCS, I want a pc which is really fast, and can play any games i want… also when im on youtube or msn etc i dont want it too lag lol. I will most prob play games like call Of Duty and RA3 and i would like to play them perfectly.. i only have a budget of around £500 without a monitor.. £600 with a monitor. Can you give me some advice about these computers:
Case Dragon Style Tower Case
Side viewing window
Front access USB & Audio
Power Supply 650w Power Pack
Processor
AMD Athlon 64 x2 6000+
Socket AM2+
Dual Core (2x 3GHz)
High Performance cpu
RAM
4GB DDR2 RAM (upgradeable to 4GB)
(We use only branded RAM)
Hard Drive
500GB SATA Hard Drive 7200rpm
– larger hard drives available (please ask)
Optical Drive
22x LG DVD Rewriter
– Dual Layer
– Supports (Plus, minus, DVD-RAM, Dual Layer, DVD-RW, CD, CD-RW etc)
Graphics
1GB GeForce 9500GT
– Dedicated video RAM
– Delivers good 3D games play
Additional Drives
52 in 1 card reader
Audio
6 channel audio
IDT 92HD202 ( CO-lay 92HD206)
Compliant with 6ch HD audio specification
External Interface
1 x PS/2 keyboard & PS/2 mouse connectors
1 x RJ45 LAN connector
8 x USB ports (6 rear; 2 front)
1 x Audio port (Line-in, Line-out, Mic-in)
Internal Interface
1 x 24-pin ATX Power Supply connector
1 x 4-pin ATX 12V connector
1 x IDE connector
1 x FDD connector
5 x Serial ATA connectors
1 x Speaker header
1 x front panel switch/LED header
3 x USB 2.0 headers support additional 4 USB ports
1 x front panel audio header
1 x front panel switch/LED header
1 x front panel audio header
1 x SPDIF out header
1x CD in header
CPUFAN/SYSFAN connectors
Network
1 x RG45 LAN Connector
1 x 802.11g Wireless LAN Adapter
Software
system Drivers and utilities
Norton/McAfee Internet Security (Limited Virus updates)
Please note that we supply this PC without an operating system. if you require Windows XP or Vista then please add at checkout.
Warranty
3 Year warranty
– 1st Year parts & Labour
– 2nd & 3rd Year Labour Only
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Galaxy III Case, Blue Neon Bubble Lights, Side Window and 650Watt PSU
Intel Quad Core Q6600 Four core Processor.
Asus P5KPL-VM G31 Chipset 1333FSB Motherboard.
500Gb SATAII 7200rpm Hard Disk Drive.
2048Mb DDR2 800Mhz memory (2x 1024Mb).
22x Dual Layer Lightscribe DVD Re-Writer.
nVidia GeForce 1024Mb 9400GT Graphics Card.
6 Channel High Definition Audio.
Multimedia Memory Card Reader.
Integrated LAN 10/100/1000 Network Card.
Wireless 54Mbps Network Card.
7 USB2.0 Ports (4 Rear, 3 Front).
Expansion Slots – 1x PCI-Express Graphics, 1x PCI-E, 2x PCI,
4x SATA, 1x IDE, 1x Fdd IDE.
External Connectivity – 7x USB2.0, 1x RJ45 Lan,
1x Serial (Com1), 2x PS2, 1x Parallel (LPT1), 1x Speaker, 1x Mic,
1x Line In.
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Processor
Intel Core 2 Quad Q6600 Quad Core Processor (2.4Ghz, 8MB Cache)
Memory
4096MB DDR2 800Mhz
Memory Slot: 2 x DIMM
Hard Drive
750GB (1x750GB) SATA300 Hard Drive (16MB Cache)
Optical Drive
20 x Super multi DVDRW
Software
Operating system: Microsoft Windows Vista Premium
Graphics
nVIDIA® GeForce 9800GT 512MB DDR3
Networking
Network Interface: 10/100/1000 LAN, Realtek® RTL8111B
Dimensions
Width: 190mm
Depth: 480mm
Height: 360mm
Power Supply
500W PSU
Interfaces
1 set 5.1 channel Audio jacks (3 jacks)
1x PS/2 keyboard port
1x PS/2 mouse port
1x Parallel port
1x Serial port
6x USB 2.0 ports
1x RJ45 LAN port
1x VGA port
2x DVI
Expansion
52in1 Flash Card Reader
Warranty
1 Year Manufacturer Warranty
Let me know which you think would be best or even if it would be better to build one my self (except i dont really have a clue how to) thanks in advance
Wow that is a long post. I just built my own PC and I new little to nothing about them. I went on Youtube and watched videos and read articles and after about a week of doing that I felt comfortable enough to try it. I ordered all the parts online and put it together all by myself without any trouble. it was an amazing experience and i highly recommend it to you if you have the time and will. if not buy the second computer you listed, it is far superior for gaming.
the last one on your list..it would be cheaper if you built it yourself…i didnt know a thing about building computers but i went to youtube and search " How to build a gaming PC" there is one by geekempire which is really simple yet informative and within a day i got enough confident to build my own gaming rig 
just built one 4 months ago