[newbie] solution to ebda too large error?

I'm dual booting Mandrake 8.1 and Windows XP. When I installed Mandrake, I let it write LILO to the MBR, and it worked great. I could boot into either one without any problems. Then, I installed some security patches using the software updater thing, and suddenly I can't get into Linux

[newbie] LM 7.2 sound works when logged in as root but not as a normal user

I have Linux mandrake 7.2, adn have been able to set up my sound card to work when I am logged in as root. But when a normal user is logged in it says "Couldn;t connect to sound server, check artsd is really running" ??? Can any body help