I'm having a problem working with the EPM900. my hardware environment is: intel pentium mmx win98 first edition usb port with no additional drivers active (hotsync is not loaded) Kiel uVison-2 v2.33 EPM900 board and usb cable connected to computer, jumpers set to use internal osc and EMU, and the read power LED is illuminated. When I plugged in the USB cable with the board attached, windows recognized a new USB device and loaded the correct drivers for the LPC900 emulator. HERE IS THE PROBLEM: with the EPM900 connected, and a project opened using the 89lpc932 as the device target, with the "options for target" menu item, under the debug tab, when i choose the "LPC900 Emulator/Programmer" rather than the "simulator" for where i want to run my debugger from, and then click on the "settings" button for the LPC900 I get an error from the kiel u-V2 software. there is a windows error dialog box that pops up and says: This program has perfromed and illegal operation and will be shut down. UV2 caused an invalid page fault in module LPC2EMP.DLL at 015f:10013d0e. Registers: EAX=00000000 CS=015f EIP=10013d0e EFLGS=00010246 EBX=008ea7f8 SS=0167 ESP=008ea698 EBP=008ea7c4 ECX=00000000 DS=0167 ESI=008ead94 FS=2ff7 EDX=8162e560 ES=0167 EDI=008ea7ac GS=0000 Bytes at CS:EIP: 8b 41 38 85 c0 75 0f ff 74 24 04 ff 71 1c ff 15 Stack dump: 10002be3 00000000 0000881c 00200020 00200020 00200020 00200020 00200020 00100048 00100010 00100010 00100010 00100010 00100010 00100010 00100010 Note: I also tried this on a Win2K machine and got the following message. Uv2.exe - Application error The instruction at "0x019b3d0e" referenced memory at "0x0000000038". The memory could not be "read". Click on Ok to terminate the program. Click on CANCEL to debug the program.