Blue Screen of Death, USB Drivers related?

I recently replaced my old USB keyboard, mouse, and headphones with some new ones and since I did that my computer has been on the fritz. At first it couldn't find a number of my USB devices including my external HD, but I got that fixed up some how, but now every time I try to start up my ventrillo or some times just at random I get a Blue screen that says BugCode_USB_Driver. I used a program called BlueScreenView to check what programs may have been causing it and it seems to point to 3; ntoskrnl.exe,usbehci.sys, and USBPORT.SYS. I have no idea what to do next and was hoping you could help.


Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows XP Professional, Service Pack 3, 32 bit
Processor: Intel(R) Pentium(R) D CPU 3.40GHz, x86 Family 15 Model 6 Stepping 5
Processor Count: 2
RAM: 3069 Mb
Graphics Card: NVIDIA GeForce GT 240, 1024 Mb
Hard Drives: C: Total - 305234 MB, Free - 116837 MB; I: Total - 1430796 MB, Free - 498422 MB;
Motherboard: Dell Inc., 0GX297
Antivirus: avast! Antivirus, Updated: Yes, On-Demand Scanner: Enabled

 

I won't lose my information right?

 

Ok, I tried deleting any thing that looked out of place, still nothing.