My PC slows down to a crawl when my internet connection to my service provider goes down. When this problem first accured I did not know what the cause was so I reimages my HD but it did not help at that time.The only way to get the PC back to normal if the internet is down is to disable the network card.As soon as the inernet connection is established the PC jumpes back into life again.Has any one got an idea what causes this strange behavour.

My Computer
At a glance
Win7 64 bitQuadCore intel i7 Extreme 975,3500 Mhz(26X125)12 G DDR32X Sapphire Radeon HD 4890
- Computer Manufacturer/Model Number
- Custom Build
- OS
- Win7 64 bit
- CPU
- QuadCore intel i7 Extreme 975,3500 Mhz(26X125)
- Motherboard
- Gigabyte GA-EX58-Extreme
- Memory
- 12 G DDR3
- Graphics Card(s)
- 2X Sapphire Radeon HD 4890
- Sound Card
- Onboard
- Monitor(s) Displays
- Eizo Color Edge CG222W & Samsung SyncMaster 226W
- Screen Resolution
- 1680X1050 Max
- Hard Drives
- Intel SSDD 160G
WD WD3000HLFS x2 Raid 0
WD WD1001Fals X2
- PSU
- ThermalTake Toughpower
- Case
- ThermalTake+UPS added
- Cooling
- Yes
- Keyboard
- Logitech Bluetooth
- Mouse
- Logitech Cordless Bluetooth
- Internet Speed
- ADSL 2