last night i shut my desktop down and this morning when i started the computer i had serious issues. Issue 1 (non network related): My computer was not loading, it wouldn't even load into the bios. i began disconnecting all devices (external HDD, keyboard, etc), still didn't solve the problem. I later solved the issue by tinkering with the RAM sticks. Computer now loads into windows xp. Issue 2 (network related). Since this morning i haven't been able to connect this pc to the internet. Originally this pc is hardwired to my router (linksys WRT54G) and i'm using a Scientific Atlanta DPC2100 modem from Time Warner. I'm sending packets, but not receiving, thus getting a limited to no connectivity error. Things i've done that have resulted in the same problem: 1. Connected the problematic pc via Ethernet (on board) to the modem/router. 2. Installed a pci network card and drivers and tried to connect to modem/router. 3. connected pc to modem via usb. 4. uninstalled and reinstalled the drivers for the modem, for the on board network card, and the pci network card. 5. Performed a System Restore to a week ago. 6. Plugged cords into different outlets 7. Tried different Ethernet and USB cables Things i've done that have had success: 1. Connected a 2nd pc to modem via Ethernet and was able to access the internet. 2. Connected a 2nd pc to the router via Ethernet and was able to access the internet. Problematic PC Specs: Pentium 4 3.0GHZ 160GB RAM 3.0GB RAM Windows XP SP3 thank for taking the time to help, i really need it.