Hi! I have the same Problem when I make much I/O on my System. So e.g. compiling a kernel results in shortly freezing X (two seconds freeze, a few seconds allright, freeze again and so on until compiling is finished).
I can not even switch my consoles with <ALT> <Fx> (with or without X running) during compilation. Problem with Kernel 2.4.10 and 2.4.7. If someone has this Laptop working fine, any hints welcome :-) I don't know what more informations you kneed, if e.g. kernelconfig is wanted, let me know. Andreas