Keyboard/mouse problem!!

I have a Key Tronic wireless keyboard and mouse. When i play any kind of game the keyboard/mouse will behave strange( Note: This problem occurs only in games. In Word and any other place it will work as excpected). http://pcpitstop.ibforums.com/html/emoticons/ermm.gif

The symptoms are: Keyboard/mouse hangs,works slowly, or shows no reaction to touch. This happens when i press one button, but not regularly. http://pcpitstop.ibforums.com/html/emoticons/mad.gif

The problem has lasted since i built my PC, and it also occurs when i try other keyboards and mouses.

Nobody has been able to give me a straight answer to this yet, but somone told me that if my pc sometimes turnes itself off (and it does sometimes) it could be the cpu thats the problem!

Really need your help so please come with good suggestions!!

 

My computer

This is my computer

I have tried to delete the mediakeys, but it didnt help. I`ve checked for driver updates and defaults in the hardware section in the system(Not shure if the translation is ok, cause my windows is in Norwegian), but it seemed as everything was uptodate and working?

PS: If the information given below isnt enough, just ask for more

Thanks!!



Summary
Computer: Operating System Microsoft Windows XP Professional OS Service Pack Service Pack 1 Internet Explorer 6.0.2800.1106 (IE 6.0 SP1) Computer Name ALEX-9QJOWVPSOR (Alex comp) User Name Alex Logon Domain ALEX-9QJOWVPSOR Motherboard: CPU Type AMD Athlon XP-A, 1100 MHz (5.5 x 200) Motherboard Name Asus A7N8X v2.0 Deluxe (5 PCI, 1 AGP Pro, 3 DIMM, IEEE-1394) Motherboard Chipset nVIDIA nForce2 Ultra 400 System Memory 512 MB (PC3200 DDR SDRAM) BIOS Type Award (05/14/03) Communication Port Kommunikasjonsport (COM1) Communication Port Kommunikasjonsport (COM2) Communication Port ECP-skriverport (LPT1) Display: Video Adapter SAPPHIRE RADEON 9200 ATLANTIS - Secondary (128 MB) Video Adapter SAPPHIRE RADEON 9200 ATLANTIS (128 MB) 3D Accelerator ATI Radeon 9200 (RV280) Monitor Standardskjerm Monitor Standardskjerm Multimedia: Audio Adapter nVIDIA MCP2 - Audio Codec Interface Audio Adapter nVIDIA MCP2 - Audio Processing Unit (Dolby Digital) Storage: Disk Drive ST3120026A (120 GB, 7200 RPM, Ultra-ATA/100) Optical Drive _NEC DVD+RW ND-1100A (DVD:4x/2.4x/12x, CD:16x/10x/40x DVD+RW) Partitions: C: (NTFS) 114463 MB (89318 MB free) Input: Keyboard Standard 101/102-Key or Microsoft Natural PS/2 Keyboard Mouse PS/2-kompatibel mus Network: Primary IP Address 192.168.0.1 Primary MAC Address 12-26-D7-0E-32-9B Network Adapter MAC Bridge Miniport - Miniport for pakkeplanlegger (192.168.0.1) Network Adapter NVIDIA nForce MCP Networking Adapter (192.168.1.141)