Auhma errors for the last one.
0x00000050: PAGE_FAULT_IN_NONPAGED_AREA
Requested data was not in memory. An invalid system memory address was referenced. Defective memory (including main memory, L2 RAM cache, video RAM) or incompatible software (including remote control and antivirus software) might cause this Stop message, as may other hardware problems (e.g., incorrect SCSI termination or a flawed PCI card). Use the General Troubleshooting of STOP Messages checklist above.
* You receive a Stop 0x00000050 error on a Blue Screen {KB 894278} Win 2000, Win XP, Server 2003 (with concurrent 1003/System entry in Event Viewer: possible Rootkit spyware infestation)
* Possible Resolutions to STOP 0x0A, 0x01E, and 0x50 Errors {KB 183169} Win NT, Win 2000, Win XP
* During setup {KB 171003} Win NT, Win 2000, Win XP
* Easy CD Creator 5.0 Does Not Function In Windows XP {KB 310628} Win XP
* How to Use Driver Verifier to Troubleshoot Windows Drivers {KB 244617} Win 2000, Win XP, Server 2003
* STOP Error When You Start Windows After You Connect a Scanner {KB 310869} Win XP
* Stop 0x1E in PROTCLS.SYS When You Undock a Toshiba Tecra 8100 {KB 284154} Win XP
* STOP 0x4E, STOP 0x1A, STOP 0x50, and STOP 0xA Errors Occur When You Try to Start the Computer {KB 271955} Win NT 4.0 (corrupt physical RAM)
* “STOP 0x00000050” Error Message in Stac97.sys After You Upgrade Your Panasonic Toughbook to Win XP Service Pack 1 {KB 329832} Win XP SP1
You say
I have a usb external harddrive, a digital camera and a music player and a scanner and a printer and a DDR Dance mat and a power cable to a screen adapter all connected at once - but still no reason why it should crash
You are trying to say that you use everyone of these so much everyday that you cannot disconnect any of them at all. I think your computer has answered your question for you. You are getting drivers errors caused by too many programs running all the time. I never connect any USB device to my computer until i need it and my computer don't crash at all. This computer is a Athlon 2400 that has been running for 2 years without any problems except the ones caused by my experiments with hardware. I have not had the restore or reinstall yet and i have 35 programs installed on it.
Disconnect all the USB stuff you are not using. Try only connecting what you will use in that hour( up to 4 hours). The rest leave off until you need it. They all take up resources and it sounds like you are running out of that and the memory to run everything. It is not that hard to shut down, plugin what you need and restart the computer. It should only take a few minutes.
SRX660