can anyone tell me how to show the boot log file or whatever it is called. coz there are errors happening when i boot on my openSUSE 10.2 and i want to reaad the log. thanks

dmesg will show you the last 500 or so lines from the kernel log. You can read through /var/log/messages (on any system I've been on at least) for a more verbose list (this is the file that dmesg actually parses for you). In either case, less is very handy for reading through the output.