grub load 2.4.4 kernel problem

[renc stone]

I have some OpenLinux2.4 and RedHat 6.2 installed in my box.
I use grub in OpenLinux2.4 to load the two parts.
A few days ago , I compiled the new kernel 2.4.4 in RedHat Linux
(with customed kernel configure),
and ready to restart.

I use some separate /boot fs.
the grub option:
root   = (hd0,5)
kernel = /vmlinuz-2.4.4   root=/dev/hda7

when startup , I chose the new kernel . 
Nothing happened! The screen  flashed , then remain the load screen, all the  
time. But I CAN  telnet to that box, that means the box IS running.
It seems my screen is locked.  I try alt-f1, ctl-alt-f1, ctl-alt-backspace, 
 no use. 

What's the problem ? should I add some kernel param to start this kernel ?