Hi! I'm working on a Compaq Deskpro 4000 5133 with the following... Imbedded CL5446 Video Imbedded NetFlex PCI Compaqs ESS ES1868 Sound DI5660 V.90 Modem Win95B OEM Harddrive was formatted/fdisk'd "clean", down to the Softpaq. Starting anew, I flashed the latest BIOS, installed the latest Softpaq, latest device drivers (all but the DI5660 off the Compaq website). Now heres the problem... When any audio file longer than 2 seconds plays the computer locks up solid! Control+Alt+Delete will boot and restart the computer. The only thing in the whole setup that I can't quite figure out is in Systems. I have an Unkown Device that Windows just can't name who's only resources are Input/Output Range 0C50-0C51. These may be 2 seperate problems. Any idea how to fix both?!? Thanks, Max The NOSPIN Group provides a monthly newsletter with great tips, information and ideas: NOSPIN-L, The NOSPIN Magazine Visit our web site to signup: http://nospin.com