I have been searching the forum and haven't been able to find an answer to this problem that works. My Spotlight has completely frozen, and all the applications on the top right bar have disappeared. When I run my mouse over spotlight, it says it is busy, and I can't access it. SystemUIServer is using up to 100 %CPU and hundreds of MB of real memory and over a GB of virtual memory. When I force it to quit, it simply restarts and does the same thing. I can run other programs. I can also restart my computer, but the same problem allways reappears. It started after a particular Spotlight search, but I have used Spotlight before with no problems. Any ideas?
Thanks for your help, but it doesn't seem to solve the problem. I deleted the file and rebooted, but no change. I also repaired my file permissions to no avail. It appears that Spotlight is stuck on scouring my disk in search of something. Perhaps it has some sort of bad input that doesn't get deleted when the system restarts?
Never mind. I misread your post and only deleted the spotlight preference file the first time. Just deleted the systemuiserver file, and everything comes back online. Thanks!