Anyone know key to enter bios on Philips Laptop?

[pmk]

Does anyone know what key(s) you need to press to enter the BIOS on a Philips Freevents X55P laptop?

I have tried what I think are standard ones and no joy. The laptop starts up with a full screen image with a Philips and Centrino logo not the usual text that tells you what to press.

I just need to swap the boot order so I can get it to boot off CD?

TIA

[GoNz0]

f2 f8 esc del? none of the usual suspects then

[pmk]

Thanks so much I had already tried them several times but I thought I would try them again and Del has just worked - it must be down to timing its very difficult with the full screen image appearing.