Unstable upgrade

Prior to selling my (x86) laptop, I had been running unstable on it since the potato rollover with no problems. Currently, my sparc workstation is running testing but I need newer gtk libs and other things, so I was ready to upgrade to unstable on it. However, 'apt-get dist-upgrade' announces

Apache problem in unstable

Hey, I know it's unstable, but... I had to upgrade my sparc5 to unstable to get debian to install php4. Everything works fine except apache which spouts out the following errors. [emerg] (11)Resource temporarily unavailable: fcntl: F_SETLKW: Error getting accept lock, exiting! Perhaps you