!!!Help!!! cold boot = blank screen everytime

[brijesh33]

this is very rare problem, whenever i do acold boot of the system my monitor doesn't sync, now when i turn off/on the monitor i get the screen back. Can anybody tell me what kinda problem is this? its perfect on warm boot of the system.
SYSTEM
Tyan s2390
socetA tbird 900mhz
128mb pc133
ati rage fury pro vivo
sbl x-gamer
Windows98 SE

Please !!! HELP !!!