Movie too dark on some pc's

1

hi,

i made a basic structure for my bussiness in flash. on my pc it looks ok. but i noticed that some pc’s (or should i say monitors?) show it very dark.

how come? and how to prevent this? has it got something to do with html safe colors?

here’s the link :

http://www.resite.be/resite.html

thnx in advance,

grenouille.