CompuServe Messages

I have an Amiga 2000HD and have just installed 2 meg of menory on my A2091 board. My Computer now won't autoboot off of my hard drive. It will boot off of a disk but I want to boot off of the HD again. When I boot off of a disk and run a memory test, the memory checks out as being OK. When I run a SYSINFO program, it finds the Memory also. I've set jumper #1 to 2 meg and jumper #2 is in AutoBoot. I've tryed changing jumper #5, option 2 for a longer wait period also. I haven't messed with jumper #5, option 1 – LUN setting. I have even tryed switching Jumper #2 to non-autoboot, which forces me to boot from disk. When it attempts to boot from the HD, the copywright comes up then All rights.. then Version 1.3. After that the screen freaks out, the power light starts flashing and then I get a guru #00000004.00208970 Does anyone have any ideas? Do I need to change something in my Startup file? Is there some jumper on the mother board that I need to change? Help!